A new book on the Enterprise JavaBeans server-side component architecture for modular construction of enterprise applications has been published by Packt. The EJB 3 (Enterprise Java Beans version 3) specification is a core component of enterprise-level JEE (Java Platform Enterprise Edition) implementations. This book covers the core elements of EJB 3 technology, exploring them in a concise manner with many supporting examples. Users will gain a thorough understanding of the EJB 3 technology and learn about the most important features of EJB 3. This book is primarily aimed at professional developers who already have a working knowledge of Java. Enterprise architects and designers with a background in Java would also find this book useful. As the new version of EJB is so radically different from the previous version (EJB 2.x), the book is suitable for and should be of interest to those who have had experience working with EJB 2.x