diff --git a/README.md b/README.md
index 96b77e9c4..5316078ac 100644
--- a/README.md
+++ b/README.md
@@ -55,7 +55,13 @@ Click here to get the [Latest Version Number](http://search.maven.org/#search%7C
 
 
 ### Overview
-A Chronicle Map implements the java.util.concurrent.ConcurrentMap, so on the face of it it works just like any other java.util.concurrent.ConcurrentMap, however there are a few differences.
+A Chronicle Map implements the java.util.concurrent.ConcurrentMap, so on the face of it it works just like any other java.util.concurrent.ConcurrentMap, however unlike ConcurrentMap, ChronicleMap is able to share the map accross processes
+
+
+![](http://openhft.net/wp-content/uploads/2014/07/Chronicle-Map-diagram_04.jpg)
+
+
+there are a few differences.
 
 ## When to use
 #### When to use HashMap