Head First EJB by Bert Bates and Kathy Sierra is a fantastic book. It is used by people who are trying to get the EJB certification, but it is also the best introduction to EJB book I have seen. It is actually funny in several parts and is written in a easy to understand, conversational language. I tried to learn EJB from Mastering Enterprise JavaBeans by Ed Roman, and, while it is a good book, I found it much more difficult for a beginner than the Head First book. People LOVE the Head First series. I think your choice is quite obvious - get Head First EJB and you won't be disappointed.
I have used "Head First EJB" by Kathy Sierra for my EJB certification.It is really good book for starters.Kathy and Bert Bates have done a great job by writing that book in comic style. You will really enjoy learning EJB from that book.
Praveena Venigalla<br />OCP,SCJP,SCWCD,SCBCD<br />--Knowledge is attained by learning to hold one's tongue