diff --git a/README.md b/README.md
index 88f86a84..2da84b0e 100644
--- a/README.md
+++ b/README.md
@@ -184,9 +184,12 @@ Property | Type | Default | Description
 `requireConfig` | String | null | RequireJS config for resolving aliased modules
 `webpackConfig` | String | null | Webpack config for resolving aliased modules
 `layout` | String | dot | Layout to use in the graph
+`rankdir` | String | LR | Sets [direction](https://graphviz.gitlab.io/_pages/doc/info/attrs.html#d:rankdir) of the graph layout
 `fontName` | String | Arial | Font name to use in the graph
 `fontSize` | String | 14px | Font size to use in the graph
 `backgroundColor` | String | #000000 | Background color for the graph
+`nodeShape` | String | box | A string specifying the [shape](https://graphviz.gitlab.io/_pages/doc/info/attrs.html#k:shape) of a node in the graph
+`nodeStyle` | String | rounded | A string specifying the [style](https://graphviz.gitlab.io/_pages/doc/info/attrs.html#k:style) of a node in the graph
 `nodeColor` | String | #c6c5fe | Default node color to use in the graph
 `noDependencyColor` | String | #cfffac | Color to use for nodes with no dependencies
 `cyclicNodeColor` | String | #ff6c60 | Color to use for circular dependencies
diff --git a/lib/api.js b/lib/api.js
index 01d89d2e..b61c3ae6 100644
--- a/lib/api.js
+++ b/lib/api.js
@@ -12,11 +12,14 @@ const defaultConfig = {
 	includeNpm: false,
 	requireConfig: null,
 	webpackConfig: null,
+	rankdir: 'LR',
 	layout: 'dot',
 	fontName: 'Arial',
 	fontSize: '14px',
 	backgroundColor: '#111111',
 	nodeColor: '#c6c5fe',
+	nodeShape: 'box',
+	nodeStyle: 'rounded',
 	noDependencyColor: '#cfffac',
 	cyclicNodeColor: '#ff6c60',
 	edgeColor: '#757575',
diff --git a/lib/graph.js b/lib/graph.js
index 51cff156..1e512570 100644
--- a/lib/graph.js
+++ b/lib/graph.js
@@ -49,7 +49,7 @@ function createGraphvizOptions(config) {
 		G: Object.assign({
 			overlap: false,
 			pad: 0.3,
-			rankdir: 'LR',
+			rankdir: config.rankdir,
 			layout: config.layout,
 			bgcolor: config.backgroundColor
 		}, graphVizOptions.G),
@@ -60,8 +60,8 @@ function createGraphvizOptions(config) {
 			fontname: config.fontName,
 			fontsize: config.fontSize,
 			color: config.nodeColor,
-			shape: 'box',
-			style: 'rounded',
+			shape: config.nodeShape,
+			style: config.nodeStyle,
 			height: 0,
 			fontcolor: config.nodeColor
 		}, graphVizOptions.N)