JBoss.orgCommunity Documentation
Developers wanting to get familiar with software development and implementation in JBoss Application Server can read: JBoss: A Developer's Notebook. (O'Reilly, 2005. Norman Richards, Sam Griffith).
For more comprehensive JBoss documentation covering advanced JBoss topics, refer to the manuals available online at http://www.jboss.org/jbossas/docs.
For general EJB instruction, with thorough JBoss coverage, see Enterprise JavaBeans, 4th Edition. (O'Reilly, 2004. Richard Monson-Haeful, Bill Burke, Sacha Labourey)
To learn more about Hibernate, see Java Persistence With Hibernate. (Manning, 2007. Christian Bauer, Gavin King)
For complete coverage of the JBoss Seam framework, we recommend JBoss Seam: Simplicity And Power Beyond Java EE. (Prentice Hall, 2007. Michael Yuan, Thomas Heute).