Mastering EJB is now in its fourth edition (last published on July 2006) and has been updated for EJB 3.0. This edition features chapters on session beans and message-driven beans, EJB-Java EE integration and advanced persistence concepts. In-depth coverage of the Java Persistence API and using POJO entities with EJB is also included.

What's new:

- More than 50% new and revised material
- Four new chapters and one new appendix covering the latest features of the new release
- Basic and advanced concepts (such as inheritance, relationships, and so on) of Java Persistence API defined entities
- Information on integrating EJB applications with the outside world via the Java EE Connector technology
- Tips and techniques for designing and deploying EJB for better performance
- Best practices for EJB 3.0 application design, development and testing
- Complete usage of EJB annotations along with equivalent XML configuration
- Tricks and traps of EJB deployment
- JBoss Workbook that discusses the exercises for each chapter (although the chapters are themselves vendor-agnostic)

link

Download: Mastering EJB 3.0 & Source code (requires free ServerSide registration).

I have read this book (Mastering EJB) in earlier editions and I recommend it.