Hibernate Caching: Simplest approach to understand

Today, I read this article about Hibernate Caching and found it very simple to understand. This describe everything related to caching in few words, starting from... what is cache, how many type of caching is there in hibernate, how many caching implementation hibernate support, and how to implement them. Meaning everything is just few word. This made this article as a study notes for beginners. Just want to share this link... Introduction to Hibernate Caching.