diff --git a/async-skipdb/Cargo.toml b/async-skipdb/Cargo.toml
index 90d2e01..8460aaf 100644
--- a/async-skipdb/Cargo.toml
+++ b/async-skipdb/Cargo.toml
@@ -36,3 +36,13 @@ smol = "2"
 [package.metadata.docs.rs]
 all-features = true
 rustdoc-args = ["--cfg", "docsrs"]
+
+[[example]]
+name = "optimistic"
+path = "examples/optimistic.rs"
+required-features = ["tokio"]
+
+[[example]]
+name = "serializable"
+path = "examples/serializable.rs"
+required-features = ["tokio"]
diff --git a/async-skipdb/README.md b/async-skipdb/README.md
index fe5c41d..405d240 100644
--- a/async-skipdb/README.md
+++ b/async-skipdb/README.md
@@ -88,52 +88,19 @@ This crate contains two kinds of in-memory key-value database:
 
 ## Example
 
-  ```rust
-  use async_skipdb::serializable::TokioSerializableDb;
-
-  #[derive(Debug)]
-  struct Person {
-    name: String,
-    hobby: String,
-    age: u8,
-  }
-
-  #[tokio::main]
-  async fn main() {
-    let db: TokioSerializableDb<u64, Person> = TokioSerializableDb::new().await;
+See [examples](./examples/).
+
+- Optimistic
   
-    {
-      let alice = Person { name: "Alice".to_string(), hobby: "swim".to_string(), age: 20 };
-      let bob = Person { name: "Bob".to_string(), hobby: "run".to_string(), age: 30 };
-
-      let mut txn = db.serializable_write().await;
-      txn.insert(1, alice).unwrap();
-      txn.insert(2, bob).unwrap();
-
-      {
-        let alice = txn.get(&1).unwrap().unwrap();
-        assert_eq!(alice.value().name, "Alice");
-        assert_eq!(alice.value().age, 20);
-        assert_eq!(alice.value().hobby, "swim");
-      }
-
-      txn.commit().await.unwrap();
-    }
-
-    {
-      let txn = db.read().await;
-      let alice = txn.get(&1).unwrap();
-      assert_eq!(alice.value().name, "Alice");
-      assert_eq!(alice.value().age, 20);
-      assert_eq!(alice.value().hobby, "swim");
-
-      let bob = txn.get(&2).unwrap();
-      assert_eq!(bob.value().name, "Bob");
-      assert_eq!(bob.value().age, 30);
-      assert_eq!(bob.value().hobby, "run"); 
-    }
-  }
-  ```
+    ```bash
+    cargo run --example optimistic --features tokio
+    ```
+
+- Serializable
+
+    ```bash
+    cargo run --example serializable --features tokio
+    ```
 
 #### License