diff --git a/README.md b/README.md
index 325f42b27..073cb4859 100644
--- a/README.md
+++ b/README.md
@@ -422,6 +422,9 @@ Behavioral patterns are concerned with algorithms and the assignment of responsi
 **Applicability:** Use the Callback pattern when
 * When some arbitrary synchronous or asynchronous action must be performed after execution of some defined activity.
 
+**Real world examples:**
+* [CyclicBarrier] (http://docs.oracle.com/javase/7/docs/api/java/util/concurrent/CyclicBarrier.html#CyclicBarrier%28int,%20java.lang.Runnable%29) constructor can accept callback that will be triggered every time when barrier is tripped.
+
 ## <a name="execute-around">Execute Around</a> [&#8593;](#list-of-design-patterns)
 **Intent:** Execute Around idiom frees the user from certain actions that should always be executed before and after the business method. A good example of this is resource allocation and deallocation leaving the user to specify only what to do with the resource.
 
@@ -430,7 +433,6 @@ Behavioral patterns are concerned with algorithms and the assignment of responsi
 **Applicability:** Use the Execute Around idiom when
 * You use an API that requires methods to be called in pairs such as open/close or allocate/deallocate.
 
-
 # Frequently asked questions
 
 **<a id="Q1">Q: What is the difference between State and Strategy patterns?</a>**
diff --git a/callback/src/main/java/com/iluwatar/App.java b/callback/src/main/java/com/iluwatar/App.java
index 6a36d66d7..2d79d8edf 100644
--- a/callback/src/main/java/com/iluwatar/App.java
+++ b/callback/src/main/java/com/iluwatar/App.java
@@ -1,7 +1,7 @@
 package com.iluwatar;
 
 /**
- * Callback pattern is more native for dynamic languages where function are first-class citizen.
+ * Callback pattern is more native for functional languages where function is treated as first-class citizen.
  * Prior to Java8 can be simulated using simple (alike command) interfaces.
  */
 public class App {