diff --git a/README.md b/README.md
index 0d2cd40..bd67e32 100644
--- a/README.md
+++ b/README.md
@@ -6,79 +6,187 @@ Developing Full-Stack Applications for the Cloud
 
 Companion repository for O'Reilly Flutter & Dart Full Stack Cookbook
 
-## [Chapter 1 Dart Essentials I](https://github.com/rosera/flutter-and-dart-cookbook/tree/main/ch01)
-- [x] [1.1 How to install the Dart SDK](https://github.com/rosera/flutter-full-stack-examples/blob/main/ch01/ex1-1.md)
-- [x] [1.2 How to run a Dart application](https://github.com/rosera/flutter-full-stack-examples/blob/main/ch01/ex1-2.md)
-- [x] [1.3 How to declare variables](https://github.com/rosera/flutter-full-stack-examples/blob/main/ch01/ex1-3.md)
-- [x] [1.4 How to use the print statement](https://github.com/rosera/flutter-full-stack-examples/blob/main/ch01/ex1-4.md)
-- [x] [1.5 How to use the If statement](https://github.com/rosera/flutter-full-stack-examples/blob/main/ch01/ex1-5.md)
-- [x] [1.6 How to use while/do while](https://github.com/rosera/flutter-full-stack-examples/blob/main/ch01/ex1-6.md)
-- [x] [1.7 How to use a For statement](https://github.com/rosera/flutter-full-stack-examples/blob/main/ch01/ex1-7.md)
-- [x] [1.8 How to use a Switch statement](https://github.com/rosera/flutter-full-stack-examples/blob/main/ch01/ex1-8.md)
-- [x] [1.9 How to use an Enum](https://github.com/rosera/flutter-full-stack-examples/blob/main/ch01/ex1-9.md)
-- [x] [1.10 How to use a Const](https://github.com/rosera/flutter-full-stack-examples/blob/main/ch01/ex1-10.md)
-- [x] [1.11 How to use a Final](https://github.com/rosera/flutter-full-stack-examples/blob/main/ch01/ex1-11.md) 
-
-## [Chapter 2 Dart Essentials II](https://github.com/rosera/flutter-and-dart-cookbook/tree/main/ch02)
-- [x] [How to declare functions](https://github.com/rosera/flutter-full-stack-examples/blob/main/ch02/ex2-1.md) 
-- [x] [How to declare anoynomous functions](https://github.com/rosera/flutter-full-stack-examples/blob/main/ch02/ex2-2.md) 
-- [x] [How to declare classes](https://github.com/rosera/flutter-full-stack-examples/blob/main/ch02/ex2-3.md) 
-- [x] [How to declare constructors](https://github.com/rosera/flutter-full-stack-examples/blob/main/ch02/ex2-4.md) 
-- [x] [How to extend clasess](https://github.com/rosera/flutter-full-stack-examples/blob/main/ch02/ex2-5.md) 
-- [x] [How to use mixins](https://github.com/rosera/flutter-full-stack-examples/blob/main/ch02/ex2-6.md) 
-- [x] [How to use Lists](https://github.com/rosera/flutter-full-stack-examples/blob/main/ch02/ex2-7.md) 
-- [x] [How to use a Map](https://github.com/rosera/flutter-full-stack-examples/blob/main/ch02/ex2-8.md) 
-- [x] [How to work with Null](https://github.com/rosera/flutter-full-stack-examples/blob/main/ch02/ex2-9.md) 
-- [x] [How to handle Exceptions](https://github.com/rosera/flutter-full-stack-examples/blob/main/ch02/ex2-10.md) 
-- [x] [How to use Import](https://github.com/rosera/flutter-full-stack-examples/blob/main/ch02/ex2-11.md) 
-
-## [Chapter 3 Flutter Essentials I](https://github.com/rosera/flutter-and-dart-cookbook/tree/main/ch03)
-- [ ] Mocking an application interface
-- [ ] Create a Flutter Project
-- [ ] Building with Widgets
-- [ ] Working with Rich Text
-- [ ] Using Horizontal lists
-- [ ] Using Vertical lists
-- [ ] Adding user interactivity
-- [ ] Adding page navigation
-- [ ] Adding a snackbar
-- [ ] adding SliverAppBar
-- [ ] Determining the platform
-
-## [Chapter 4 Flutter Essentials II](https://github.com/rosera/flutter-and-dart-cookbook/tree/main/ch04)
-- [ ] Using Expanded
-- [ ] Using Circle Avatar
-- [ ] Using Media Query
-- [ ] Using Stateful Widgets
-- [ ] Using Stateless Widgets
-- [ ] Adding googlefonts
-- [ ] Adding a container
-- [ ] Adding Bottom navigation
-- [ ] Adding a Drawer
-- [ ] Adding a Gridview
-- [ ] Adding an introduction screen (Splash)
-
-## [Chapter 5 Flutter Essentials III](https://github.com/rosera/flutter-and-dart-cookbook/tree/main/ch05)
-- [ ] Using local data management
-- [ ] Using JSON
-- [ ] Adding a Future loader
-
-## [Chapter 6 Cloud Essentials I](https://github.com/rosera/flutter-and-dart-cookbook/tree/main/ch06)
-- [ ] Cloud Providers - e.g. Google Cloud, AWS, Azure
-- [ ] Using Cloud Object Storage
-- [ ] Using Workspace APIs
-
-## [Chapter 7 Cloud Essentials II](https://github.com/rosera/flutter-and-dart-cookbook/tree/main/ch07)
-- [ ] Google Cloud Run
-- [ ] AWS Lamba
-- [ ] Azure Functions
-
-## [Chapter 8 Authentication I](https://github.com/rosera/flutter-and-dart-cookbook/tree/main/ch08)
-- [ ] Passport
-- [ ] Firebase Authentication
-
-## [Chapter 9 Databases I](https://github.com/rosera/flutter-and-dart-cookbook/tree/main/ch09)
-- [ ] Firebase Firestore
-- [ ] MongoDB
-- [ ] MySQL
-- [ ] PostgreSQL
+
+## [Chapter 1 Setting up your environment](https://github.com/rosera/flutter-and-dart-cookbook/tree/main/ch01)
+ 
+- [x] [1.1 How to install the Dart SDK](http://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch01/ex1-1.md)
+- [x] [1.2 How to run a Dart application](http://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch01/ex1-2.md)
+- [x] [1.3 Extending Android Studio to support Dart](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch01/ex1-3.md
+- [x] [1.4 Developing with VS Code](http://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch01/ex1-4.md)
+- [x] [1.5 Installing the Dart SDK](http://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch01/ex1-5.md)
+- [x] [1.6 Running a Dart application](http://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch01/ex1-6.md)
+- [x] [1.7 Selecting a release channel](http://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch01/ex1-7.md)
+
+
+## [Chapter 2 Learning Dart variables](https://github.com/rosera/flutter-and-dart-cookbook/tree/main/ch02)
+
+
+- [x] [2.1 Declaring an integer variable](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch02/ex2-1.md
+- [x] [2.2 Declaring a Double variable](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch02/ex2-2.md
+- [x] [2.3 Declaring a bool variable](http://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch02/ex2-3.md)
+- [x] [2.4 Declaring a string variable](http://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch02/ex2-4.md)
+- [x] [2.5 Using a print statement](http://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch02/ex2-5.md)
+- [x] [2.6 Using a const](http://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch02/ex2-6.md)
+- [x] [2.7 Using final](http://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch02/ex2-7.md)
+- [x] [2.8 Working with Null](http://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch02/ex2-8.md)
+
+## [Chapter 3 Exploring control flow](https://github.com/rosera/flutter-and-dart-cookbook/tree/main/ch03)
+
+
+- [x] [3.1 Using an If statement](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch03/ex3-1.md)
+- [x] [3.2 Using While/Do while](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch03/ex3-2.md)
+- [x] [3.3 Using a For statement](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch03/ex3-3.md)
+- [x] [3.4 Using a Switch statement](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch03/ex3-4.md)
+- [x] [3.5 Using an Enum](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch03/ex3-5.md)
+- [x] [3.6 Handling exceptions](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch03/ex3-6.md)
+
+
+## [Chapter 4 Implementing Functions](https://github.com/rosera/flutter-and-dart-cookbook/tree/main/ch04)
+
+
+- [x] [4.1 Declaring functions](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch04/ex4-1.md)
+- [x] [4.2 Adding Parameters to functions](https://github.com/rosera/flutter-/nd-dart-cookbook/blob/main/ch04/ex4-2.md)
+- [x] [4.3 Returning values from functions](https://github.com/rosera/flutter-and-dart-cookbbokblob/main/ch04/ex4-3.md)
+- [x] [4.4 Declaring anonymous functions](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch04/ex4-4.md)
+- [x] [4.5 Using optional parameters](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch04/ex4-5.md)
+
+
+## [Chapter 5 Handling maps and lists](https://github.com/rosera/flutter-and-dart-cookbook/tree/main/ch05)
+
+
+- [x] [5.1 Using a map to handle objects](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch05/ex5-1.md)
+- [x] [5.2 Retrieving map content](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch05/ex5-2.md)
+- [x] [5.3 Validating key existence within a map](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch05/ex5-3.md)
+- [x] [5.4 Working with lists](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch05/ex5-4.md)
+- [x] [5.5 Adding list content](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch05/ex5-5.md)
+- [x] [5.6 Using lists with complex types](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch05/ex5-6.md)
+
+## [Chapter 6 Leveraging classes](https://github.com/rosera/flutter-and-dart-cookbook/tree/main/ch06)
+
+
+- [x] [6.1 Defining classes](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch06/ex6-1.md)
+- [x] [6.2 Using class constructors](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch06/ex6-2.md)
+- [x] [6.3 Extending a class](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch06/ex6-3.md)
+- [x] [6.4 Extending classes with mixins](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch06/ex6-4.md)
+- [x] [6.5 Importing a package](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch06/ex6-5.md)
+
+
+## [Chapter 7 Introducing the Flutter framework](https://github.com/rosera/flutter-and-dart-cookbook/tree/main/ch07)
+
+
+- [x] [7.1 Mocking an interface](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch07ex7-1.md)
+- [x] [7.2 Creating a Flutter project](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch07/ex7-2.md)
+- [x] [7.3 Working with a stateful widget](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch07/ex7-3.md)
+- [x] [7.4 Working with a stateless widget](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch07/ex7-4.md)
+- [x] [7.5 Refactoring widgets](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch07/ex7-5.md)
+- [x] [7.6 Removing the Flutter debug banner](https://github.com/rosera/flutter-and-dart-cookbookblob/main/ch07/ex7-6.md)
+
+## [Chapter 8 Working with widgets](https://github.com/rosera/flutter-and-dart-cookbook/tree/main/ch08)
+
+
+- [x] [8.1 Using the scaffold class](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch08ex8-1.md)
+- [x] [8.2 Using an AppBar](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch08/ex8-2.md)
+- [x] [8.3 Using an Expanded widget](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch08/ex8-3.md)
+- [x] [8.4 Building with a container](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch08/ex8-4.md)
+- [x] [8.5 Using a Center widget](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch08/ex8-5.md)
+- [x] [8.6 Using a SizedBox](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch08/ex8-6.md)
+- [x] [8.7 Using a Column](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch08/ex8-7.md)
+- [x] [8.8 Using a Row](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch08/ex8-8.md)
+
+
+## [Chapter 9 Developing user interfaces](https://github.com/rosera/flutter-and-dart-cookbook/tree/main/ch09)
+
+
+- [x] [9.1 Incorporating rich text](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch09/ex9-1.md)
+- [x] [9.2 Incororating the Google Fonts package](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch09/ex9-2.md)
+- [x] [9.3 Identifying the host platform](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch09/ex9-3.md)
+- [x] [9.4 Using a Placeholder widget](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch09/ex9-4.md)
+- [x] [9.5 Using a Layout builder](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch09/ex9-5.md)
+- [x] [9.6 Getting screen dimensions with Media query](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch09/ex9-6.md)
+
+
+## [Chapter 10 Organising on screen data](https://github.com/rosera/flutter-and-dart-cookbook/tree/main/ch10)
+
+
+- [x] [10.1 Implementing a vertical list](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch10/ex10-1.md)
+- [x] [10.2 Implementing a horizontal list](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch10/ex10-2.md)
+- [x] [10.3 Adding a SliverAppBar](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch10/ex10-3.md)
+- [x] [10.4 Adding a grid of items](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch10/ex10-4.md)
+- [x] [10.5 Adding a SnackBar (pop up notification](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch10/ex10-5.md)
+
+
+## [Chapter 11 Flutter page navigation](https://github.com/rosera/flutter-and-dart-cookbook/tree/main/ch11)
+
+
+- [x] [11.1 Adding page navigation with routes ](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch11/ex11-1.md)
+- [x] [11.2 Implementing a navigational drawer](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch11/ex11-2.md)
+- [x] [11.3 Working with tabs](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch11/ex11-3.md)
+- [x] [11.4 Adding bottom navigation ](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch11/ex11-4.md)
+- [x] [11.5 Using keys to pass information](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch11/ex11-5.md)
+
+
+
+## [Chapter 12 Handling data assets](https://github.com/rosera/flutter-and-dart-cookbook/tree/main/ch12)
+
+
+- [x] [12.1 Refactoring data](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch12/ex12-1.md)
+- [x] [12.2 Local data management](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch12/ex12-2.md)
+- [x] [12.3 Asset folder management](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch12/ex12-3.md)
+- [x] [12.4 Remote data management JSON](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch12/ex12-4.md)
+- [x] [12.5 Automating JSON to Dart classes](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch12/ex12-5.md)
+- [x] [12.6 Using JSON serialization](https://github.com/rosera/flutter-and-dart-cookbook-examples/blob/main/ch12/ex12-6.md)
+
+## [Chapter 13 Introducing cloud services](https://github.com/rosera/flutter-and-dart-cookbook/tree/main/ch13)
+
+
+- [x] [13.1 Introducing cloud providers](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch13/ex13-1.md)
+- [x] [13.2 Working with identity and access management](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch13/ex13-2.md)
+- [x] [13.3 Using cloud storage to host and API](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch13/ex13-3.md)
+- [x] [13.4 Using a spreadsheet as a backend](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch13/ex13-4.md)
+- [x] [13.5 Developing with serverless (cloud run)](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch13/ex13-5.md)
+
+## [Chapter 14 Working with Firebase and Flutter](https://github.com/rosera/flutter-and-dart-cookbook/tree/main/ch14)
+
+
+- [x] [14.1 Integrating Firebase backend with Flutter](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch14/ex14-1.md)
+- [x] [14.2 Setting up a Firebase project](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch14/ex14-2.md)
+- [x] [14.3 Initilise Firebase on the client](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch14/ex14-3.md)
+- [x] [14.4 Firebase/Flutter client integration](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch14/ex14-4.md)
+- [x] [14.5 Configuring Firebase emulators for local development](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch14/ex14-5.md)
+- [x] [14.6 Adding Firebase authentication to Flutter ](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch14/ex14-6.md)
+- [x] [14.7 Setting up cloud Firestore](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch14/ex14-7.md)
+- [x] [14.8 Writing data to cloud Firestore](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch14/ex14-8.md)
+- [x] [14.9 Reading data from cloud Firestore](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch14/ex14-9.md)
+
+
+## [Chapter 15 Starting game development](https://github.com/rosera/flutter-and-dart-cookbook/tree/main/ch15)
+
+
+- [x] [15.1 Adding the Flame package to Flutter](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch15/ex15-1.md)
+- [x] [15.2 Using the Flame boilerplate](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch15/ex15-2.md)
+- [x] [15.3 Refactoring with Flame components](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch15/ex15-3.md)
+- [x] [15.4 Using the Flame graphic primitives](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch15/ex15-4.md)
+- [x] [15.5 Adding text rendering](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch15/ex15-5.md)
+- [x] [15.6 Adding sound effects to a Flame game](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch15/ex15-6.md)
+- [x] [15.7 Adding keyboard input](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch15/ex15-7.md)
+- [x] [15.8 Adding collision detection](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch15/ex15-8.md)
+- [x] [15.9 Adding inout for user interactivity](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch15/ex15-9.md)
+
+
+## [Chapter 16 Using Dart test cases](https://github.com/rosera/flutter-and-dart-cookbook/tree/main/ch16)
+
+
+- [x] [16.0 Using Dart test cases](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch16/ex16-0.md)
+- [x] [16.1 Adding the Dart test package](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch16/ex16-1.md)
+- [x] [16.2 How to apply unit tests to Dart](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch16/ex16-2.md)
+- [x] [16.3 Grouping multiple unit tests](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch16/ex16-3.md)
+- [x] [16.4 Adding mock data for testing](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch16/ex16-4.md)
+- [x] [16.5 Performing widget testing](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch16/ex16-5.md)
+
+
+## [Chapter 17 Testing the Flutter user interface](https://github.com/rosera/flutter-and-dart-cookbook/tree/main/ch17)
+
+
+- [x] [17.1 Testing widgets in Flutter](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch17/ex17-1.md)
+- [x] [17.2 Performing integration testing with Flutter Driver](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch17/ex17-2.md)
+- [x] [17.3 Testing Android/iOS device compatibility ](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch17/ex17-3.md)
diff --git a/ch01/README.md b/ch01/README.md
index 885ee5e..a8c7268 100644
--- a/ch01/README.md
+++ b/ch01/README.md
@@ -6,16 +6,14 @@ Developing Full-Stack Applications for the Cloud
 
 Companion repository for O'Reilly Flutter & Dart Full Stack Cookbook
 
-## Dart Essentials I
+## Setting up your environment 
+ 
+- [x] [1.1 How to install the Dart SDK](http://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch01/ex1-1.md)
+- [x] [1.2 How to run a Dart application](http://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch01/ex1-2.md)
+- [x] [1.3 Extending Android Studio to support Dart](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch01/ex1-3.md
+- [x] [1.4 Developing with VS Code](http://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch01/ex1-4.md)
+- [x] [1.5 Installing the Dart SDK](http://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch01/ex1-5.md)
+- [x] [1.6 Running a Dart application](http://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch01/ex1-6.md)
+- [x] [1.7 Selecting a release channel](http://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch01/ex1-7.md)
+
 
-- [x] [1.1 How to install the Dart SDK](https://github.com/rosera/flutter-full-stack-examples/blob/main/ch01/ex1-1.md)
-- [x] [1.2 How to run a Dart application](https://github.com/rosera/flutter-full-stack-examples/blob/main/ch01/ex1-2.md)
-- [x] [1.3 How to declare variables](https://github.com/rosera/flutter-full-stack-examples/blob/main/ch01/ex1-3.md)
-- [x] [1.4 How to use the print statement](https://github.com/rosera/flutter-full-stack-examples/blob/main/ch01/ex1-4.md)
-- [x] [1.5 How to use the If statement](https://github.com/rosera/flutter-full-stack-examples/blob/main/ch01/ex1-5.md)
-- [x] [1.6 How to use while/do while](https://github.com/rosera/flutter-full-stack-examples/blob/main/ch01/ex1-6.md)
-- [x] [1.7 How to use a For statement](https://github.com/rosera/flutter-full-stack-examples/blob/main/ch01/ex1-7.md)
-- [x] [1.8 How to use a Switch statement](https://github.com/rosera/flutter-full-stack-examples/blob/main/ch01/ex1-8.md)
-- [x] [1.9 How to use an Enum](https://github.com/rosera/flutter-full-stack-examples/blob/main/ch01/ex1-9.md)
-- [x] [1.10 How to use a Const](https://github.com/rosera/flutter-full-stack-examples/blob/main/ch01/ex1-10.md)
-- [x] [1.11 How to use a Final](https://github.com/rosera/flutter-full-stack-examples/blob/main/ch01/ex1-11.md) 
diff --git a/ch02/README.md b/ch02/README.md
new file mode 100644
index 0000000..1f86c79
--- /dev/null
+++ b/ch02/README.md
@@ -0,0 +1,21 @@
+
+# Flutter Full stack examples
+
+Developing Full-Stack Applications for the Cloud
+
+![Flutter & Dart Cookbook](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/images/flutter-dart-cookbook-sml.png "Flutter & Dart Cookbook")
+
+Companion repository for O'Reilly Flutter & Dart Full Stack Cookbook
+
+## Learning Dart variables 
+
+- [x] [2.1  Declaring an Integer variable  
+](http://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch02/ex2-1.md)
+- [x] [2.2 Declaring a Double variable](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch02/ex2-2.md
+- [x] [2.3 Declaring a bool variable](http://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch02/ex2-3.md)
+- [x] [2.4 Declaring a string variable](http://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch02/ex2-4.md)
+- [x] [2.5 Using a print statement](http://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch02/ex2-5.md)
+- [x] [2.6 Using a const](http://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch02/ex2-6.md)
+- [x] [2.7 Using final](http://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch02/ex2-7.md)
+- [x] [2.8 Working with Null](http://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch02/ex2-8.md)
+
diff --git a/ch03/README.md b/ch03/README.md
new file mode 100644
index 0000000..ffa6747
--- /dev/null
+++ b/ch03/README.md
@@ -0,0 +1,17 @@
+
+# Flutter Full stack examples
+
+Developing Full-Stack Applications for the Cloud
+
+![Flutter & Dart Cookbook](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/images/flutter-dart-cookbook-sml.png "Flutter & Dart Cookbook")
+
+Companion repository for O'Reilly Flutter & Dart Full Stack Cookbook
+
+## Exploring control flow 
+
+- [x] [3.1 Using an If statement](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch03/ex3-1.md)
+- [x] [3.2 Using While/Do while](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch03/ex3-2.md)
+- [x] [3.3 Using a For statement](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch03/ex3-3.md)
+- [x] [3.4 Using a Switch statement](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch03/ex3-4.md)
+- [x] [3.5 Using an Enum](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch03/ex3-5.md)
+- [x] [3.6 Handling exceptions](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch03/ex3-6.md)
diff --git a/ch04/README.md b/ch04/README.md
new file mode 100644
index 0000000..f081d24
--- /dev/null
+++ b/ch04/README.md
@@ -0,0 +1,16 @@
+
+# Flutter Full stack examples
+
+Developing Full-Stack Applications for the Cloud
+
+![Flutter & Dart Cookbook](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/images/flutter-dart-cookbook-sml.png "Flutter & Dart Cookbook")
+
+Companion repository for O'Reilly Flutter & Dart Full Stack Cookbook
+
+## Implementing Functions
+
+- [x] [4.1 Declaring functions](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch04/ex4-1.md)
+- [x] [4.2 Adding Parameters to functions](https://github.com/rosera/flutter-/nd-dart-cookbook/blob/main/ch04/ex4-2.md)
+- [x] [4.3 Returning values from functions](https://github.com/rosera/flutter-and-dart-cookbbokblob/main/ch04/ex4-3.md)
+- [x] [4.4 Declaring anonymous functions](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch04/ex4-4.md)
+- [x] [4.5 Using optional parameters](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch04/ex4-5.md)
diff --git a/ch05/README.md b/ch05/README.md
new file mode 100644
index 0000000..c1b15de
--- /dev/null
+++ b/ch05/README.md
@@ -0,0 +1,17 @@
+
+# Flutter Full stack examples
+
+Developing Full-Stack Applications for the Cloud
+
+![Flutter & Dart Cookbook](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/images/flutter-dart-cookbook-sml.png "Flutter & Dart Cookbook")
+
+Companion repository for O'Reilly Flutter & Dart Full Stack Cookbook
+
+## Handling maps and lists
+
+- [x] [5.1 Using a map to handle objects](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch05/ex5-1.md)
+- [x] [5.2 Retrieving map content](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch05/ex5-2.md)
+- [x] [5.3 Validating key existence within a map](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch05/ex5-3.md)
+- [x] [5.4 Working with lists](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch05/ex5-4.md)
+- [x] [5.5 Adding list content](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch05/ex5-5.md)
+- [x] [5.6 Using lists with complex types](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch05/ex5-6.md)
diff --git a/ch06/README.md b/ch06/README.md
new file mode 100644
index 0000000..f600835
--- /dev/null
+++ b/ch06/README.md
@@ -0,0 +1,16 @@
+
+# Flutter Full stack examples
+
+Developing Full-Stack Applications for the Cloud
+
+![Flutter & Dart Cookbook](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/images/flutter-dart-cookbook-sml.png "Flutter & Dart Cookbook")
+
+Companion repository for O'Reilly Flutter & Dart Full Stack Cookbook
+
+## Leveraging classes 
+
+- [x] [6.1 Defining classes](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch06/ex6-1.md)
+- [x] [6.2 Using class constructors](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch06/ex6-2.md)
+- [x] [6.3 Extending a class](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch06/ex6-3.md)
+- [x] [6.4 Extending classes with mixins](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch06/ex6-4.md)
+- [x] [6.5 Importing a package](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch06/ex6-5.md)
diff --git a/ch07/README.md b/ch07/README.md
new file mode 100644
index 0000000..ca799d9
--- /dev/null
+++ b/ch07/README.md
@@ -0,0 +1,17 @@
+
+# Flutter Full stack examples
+
+Developing Full-Stack Applications for the Cloud
+
+![Flutter & Dart Cookbook](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/images/flutter-dart-cookbook-sml.png "Flutter & Dart Cookbook")
+
+Companion repository for O'Reilly Flutter & Dart Full Stack Cookbook
+
+## Introducing the Flutter framework 
+
+- [x] [7.1 Mocking an interface](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch07ex7-1.md)
+- [x] [7.2 Creating a Flutter project](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch07/ex7-2.md)
+- [x] [7.3 Working with a stateful widget](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch07/ex7-3.md)
+- [x] [7.4 Working with a stateless widget](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch07/ex7-4.md)
+- [x] [7.5 Refactoring widgets](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch07/ex7-5.md)
+- [x] [7.6 Removing the Flutter debug banner](https://github.com/rosera/flutter-and-dart-cookbookblob/main/ch07/ex7-6.md)
diff --git a/ch08/README.md b/ch08/README.md
new file mode 100644
index 0000000..1c4a7a9
--- /dev/null
+++ b/ch08/README.md
@@ -0,0 +1,19 @@
+
+# Flutter Full stack examples
+
+Developing Full-Stack Applications for the Cloud
+
+![Flutter & Dart Cookbook](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/images/flutter-dart-cookbook-sml.png "Flutter & Dart Cookbook")
+
+Companion repository for O'Reilly Flutter & Dart Full Stack Cookbook
+
+## Working with widgets 
+
+- [x] [8.1 Using the scaffold class](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch08ex8-1.md)
+- [x] [8.2 Using an AppBar](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch08/ex8-2.md)
+- [x] [8.3 Using an Expanded widget](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch08/ex8-3.md)
+- [x] [8.4 Building with a container](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch08/ex8-4.md)
+- [x] [8.5 Using a Center widget](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch08/ex8-5.md)
+- [x] [8.6 Using a SizedBox](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch08/ex8-6.md)
+- [x] [8.7 Using a Column](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch08/ex8-7.md)
+- [x] [8.8 Using a Row](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch08/ex8-8.md)
diff --git a/ch09/README.md b/ch09/README.md
new file mode 100644
index 0000000..16a4f29
--- /dev/null
+++ b/ch09/README.md
@@ -0,0 +1,17 @@
+
+# Flutter Full stack examples
+
+Developing Full-Stack Applications for the Cloud
+
+![Flutter & Dart Cookbook](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/images/flutter-dart-cookbook-sml.png "Flutter & Dart Cookbook")
+
+Companion repository for O'Reilly Flutter & Dart Full Stack Cookbook
+
+## Developing user interfaces 
+
+- [x] [9.1 Incorporating rich text](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch09/ex9-1.md)
+- [x] [9.2 Incororating the Google Fonts package](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch09/ex9-2.md)
+- [x] [9.3 Identifying the host platform](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch09/ex9-3.md)
+- [x] [9.4 Using a Placeholder widget](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch09/ex9-4.md)
+- [x] [9.5 Using a Layout builder](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch09/ex9-5.md)
+- [x] [9.6 Getting screen dimensions with Media query](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch09/ex9-6.md)
diff --git a/ch10/README.md b/ch10/README.md
new file mode 100644
index 0000000..d5b4874
--- /dev/null
+++ b/ch10/README.md
@@ -0,0 +1,16 @@
+
+# Flutter Full stack examples
+
+Developing Full-Stack Applications for the Cloud
+
+![Flutter & Dart Cookbook](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/images/flutter-dart-cookbook-sml.png "Flutter & Dart Cookbook")
+
+Companion repository for O'Reilly Flutter & Dart Full Stack Cookbook
+
+## Organising on screen data 
+
+- [x] [10.1 Implementing a vertical list](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch10/ex10-1.md)
+- [x] [10.2 Implementing a horizontal list](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch10/ex10-2.md)
+- [x] [10.3 Adding a SliverAppBar](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch10/ex10-3.md)
+- [x] [10.4 Adding a grid of items](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch10/ex10-4.md)
+- [x] [10.5 Adding a SnackBar (pop up notification](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch10/ex10-5.md)
diff --git a/ch11/README.md b/ch11/README.md
new file mode 100644
index 0000000..c571619
--- /dev/null
+++ b/ch11/README.md
@@ -0,0 +1,16 @@
+
+# Flutter Full stack examples
+
+Developing Full-Stack Applications for the Cloud
+
+![Flutter & Dart Cookbook](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/images/flutter-dart-cookbook-sml.png "Flutter & Dart Cookbook")
+
+Companion repository for O'Reilly Flutter & Dart Full Stack Cookbook
+
+## Flutter page navigation 
+
+- [x] [11.1 Adding page navigation with routes ](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch11/ex11-1.md)
+- [x] [11.2 Implementing a navigational drawer](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch11/ex11-2.md)
+- [x] [11.3 Working with tabs](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch11/ex11-3.md)
+- [x] [11.4 Adding bottom navigation ](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch11/ex11-4.md)
+- [x] [11.5 Using keys to pass information](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch11/ex11-5.md)
diff --git a/ch12/README.md b/ch12/README.md
new file mode 100644
index 0000000..e60360e
--- /dev/null
+++ b/ch12/README.md
@@ -0,0 +1,17 @@
+
+# Flutter Full stack examples
+
+Developing Full-Stack Applications for the Cloud
+
+![Flutter & Dart Cookbook](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/images/flutter-dart-cookbook-sml.png "Flutter & Dart Cookbook")
+
+Companion repository for O'Reilly Flutter & Dart Full Stack Cookbook
+
+## Handling data assets 
+
+- [x] [12.1 Refactoring data](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch12/ex12-1.md)
+- [x] [12.2 Local data management](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch12/ex12-2.md)
+- [x] [12.3 Asset folder management](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch12/ex12-3.md)
+- [x] [12.4 Remote data management JSON](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch12/ex12-4.md)
+- [x] [12.5 Automating JSON to Dart classes](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch12/ex12-5.md)
+- [x] [12.6 Using JSON serialization](https://github.com/rosera/flutter-and-dart-cookbook-examples/blob/main/ch12/ex12-6.md)
diff --git a/ch13/README.md b/ch13/README.md
new file mode 100644
index 0000000..56ef946
--- /dev/null
+++ b/ch13/README.md
@@ -0,0 +1,16 @@
+
+# Flutter Full stack examples
+
+Developing Full-Stack Applications for the Cloud
+
+![Flutter & Dart Cookbook](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/images/flutter-dart-cookbook-sml.png "Flutter & Dart Cookbook")
+
+Companion repository for O'Reilly Flutter & Dart Full Stack Cookbook
+
+## Introducing Cloud services 
+
+- [x] [13.1 Introducing cloud providers](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch13/ex13-1.md)
+- [x] [13.2 Working with identity and access management](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch13/ex13-2.md)
+- [x] [13.3 Using cloud storage to host and API](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch13/ex13-3.md)
+- [x] [13.4 Using a spreadsheet as a backend](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch13/ex13-4.md)
+- [x] [13.5 Developing with serverless (cloud run)](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch13/ex13-5.md)
diff --git a/ch14/README.md b/ch14/README.md
new file mode 100644
index 0000000..93cb86c
--- /dev/null
+++ b/ch14/README.md
@@ -0,0 +1,20 @@
+
+# Flutter Full stack examples
+
+Developing Full-Stack Applications for the Cloud
+
+![Flutter & Dart Cookbook](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/images/flutter-dart-cookbook-sml.png "Flutter & Dart Cookbook")
+
+Companion repository for O'Reilly Flutter & Dart Full Stack Cookbook
+
+## Working with Firebase and Flutter 
+
+- [x] [14.1 Integrating Firebase backend with Flutter](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch14/ex14-1.md)
+- [x] [14.2 Setting up a Firebase project](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch14/ex14-2.md)
+- [x] [14.3 Initilise Firebase on the client](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch14/ex14-3.md)
+- [x] [14.4 Firebase/Flutter client integration](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch14/ex14-4.md)
+- [x] [14.5 Configuring Firebase emulators for local development](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch14/ex14-5.md)
+- [x] [14.6 Adding Firebase authentication to Flutter ](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch14/ex14-6.md)
+- [x] [14.7 Setting up cloud Firestore](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch14/ex14-7.md)
+- [x] [14.8 Writing data to cloud Firestore](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch14/ex14-8.md)
+- [x] [14.9 Reading data from cloud Firestore](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch14/ex14-9.md)
diff --git a/ch14/ex14-8.md b/ch14/ex14-8.md
index 26c07a5..78344ae 100644
--- a/ch14/ex14-8.md
+++ b/ch14/ex14-8.md
@@ -1,4 +1,4 @@
-# 14.8 Writing to data to Cloud Firestore
+# 14.8 Writing data to Cloud Firestore
 
 
 # Example: Add packages
@@ -9,7 +9,7 @@ flutter pub add cloud_firestore
 
 ```
 
-# Example: Firebase essentionals II
+# Example: Firebase essentials II
 
 [https://docs.google.com/document/d/1EWne4Bd0ETHkEQgWuvrVZeQXEgDLXMY69iHw138PYNk/edit?resourcekey=0-8K3f5lNqMJyX2L9aQucPag#](Firebase & Flutter)
 
diff --git a/ch15/README.md b/ch15/README.md
new file mode 100644
index 0000000..aea9072
--- /dev/null
+++ b/ch15/README.md
@@ -0,0 +1,20 @@
+
+# Flutter Full stack examples
+
+Developing Full-Stack Applications for the Cloud
+
+![Flutter & Dart Cookbook](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/images/flutter-dart-cookbook-sml.png "Flutter & Dart Cookbook")
+
+Companion repository for O'Reilly Flutter & Dart Full Stack Cookbook
+
+## Starting with game development 
+
+- [x] [15.1 Adding the Flame package to Flutter](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch15/ex15-1.md)
+- [x] [15.2 Using the Flame boilerplate](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch15/ex15-2.md)
+- [x] [15.3 Refactoring with Flame components](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch15/ex15-3.md)
+- [x] [15.4 Using the Flame graphic primitives](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch15/ex15-4.md)
+- [x] [15.5 Adding text rendering](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch15/ex15-5.md)
+- [x] [15.6 Adding sound effects to a Flame game](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch15/ex15-6.md)
+- [x] [15.7 Adding keyboard input](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch15/ex15-7.md)
+- [x] [15.8 Adding collision detection](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch15/ex15-8.md)
+- [x] [15.9 Adding inout for user interactivity](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch15/ex15-9.md)
diff --git a/ch15/ex15-8.md b/ch15/ex15-8.md
index 829e62a..1413ea0 100644
--- a/ch15/ex15-8.md
+++ b/ch15/ex15-8.md
@@ -1,4 +1,4 @@
-# 15.8 Adding Collection Detection
+# 15.8 Adding Collision Detection
 
 
 # Example: Collision detection
diff --git a/ch16/README.md b/ch16/README.md
new file mode 100644
index 0000000..6e67879
--- /dev/null
+++ b/ch16/README.md
@@ -0,0 +1,17 @@
+
+# Flutter Full stack examples
+
+Developing Full-Stack Applications for the Cloud
+
+![Flutter & Dart Cookbook](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/images/flutter-dart-cookbook-sml.png "Flutter & Dart Cookbook")
+
+Companion repository for O'Reilly Flutter & Dart Full Stack Cookbook
+
+## Using Dart test cases 
+
+- [x] [16.0 Using Dart test cases](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch16/ex16-0.md)
+- [x] [16.1 Adding the Dart test package](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch16/ex16-1.md)
+- [x] [16.2 How to apply unit tests to Dart](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch16/ex16-2.md)
+- [x] [16.3 Grouping multiple unit tests](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch16/ex16-3.md)
+- [x] [16.4 Adding mock data for testing](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch16/ex16-4.md)
+- [x] [16.5 Performing widget testing](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch16/ex16-5.md)
diff --git a/ch17/README.md b/ch17/README.md
new file mode 100644
index 0000000..c3ed797
--- /dev/null
+++ b/ch17/README.md
@@ -0,0 +1,14 @@
+
+# Flutter Full stack examples
+
+Developing Full-Stack Applications for the Cloud
+
+![Flutter & Dart Cookbook](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/images/flutter-dart-cookbook-sml.png "Flutter & Dart Cookbook")
+
+Companion repository for O'Reilly Flutter & Dart Full Stack Cookbook
+
+## Testing the Flutter user interface 
+
+- [x] [17.1 Testing widgets in Flutter](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch17/ex17-1.md)
+- [x] [17.2 Performing integration testing with Flutter Driver](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch17/ex17-2.md)
+- [x] [17.3 Testing Android/iOS device compatibility ](https://github.com/rosera/flutter-and-dart-cookbook/blob/main/ch17/ex17-3.md)