diff --git a/adapter/src/main/java/com/iluwatar/adapter/App.java b/adapter/src/main/java/com/iluwatar/adapter/App.java
index 3d10a4d41..ed036b391 100644
--- a/adapter/src/main/java/com/iluwatar/adapter/App.java
+++ b/adapter/src/main/java/com/iluwatar/adapter/App.java
@@ -1,7 +1,13 @@
 package com.iluwatar.adapter;
 
 /**
- * 
+ *
+ * An adapter helps two incompatible interfaces to work together. This is the real 
+ * world definition for an adapter. Interfaces may be incompatible but the inner 
+ * functionality should suit the need. The Adapter design pattern allows otherwise 
+ * incompatible classes to work together by converting the interface of one class 
+ * into an interface expected by the clients.
+ * <p>
  * There are two variations of the Adapter pattern: The class adapter implements
  * the adaptee's interface whereas the object adapter uses composition to
  * contain the adaptee in the adapter object. This example uses the object