Designed for beginners and intermediate developers, this book teaches JPA from the ground up with an aim to get the reader up to speed with JPA as quickly as possible. It delves deeply into the core of the JPA, providing a sound understanding of the components that make up the framework and the way they interact with each other. This book uses the learning by doing pattern with a lot of ready-to-use examples. This pattern has proven to be the best approach for learning a new technology. Most [if not all] of the concepts that you will find in this book are demonstrated using well described and easy to understand examples, yet sophisticated enough to demonstrate JPA in a real-world context.