Hi Deepak,
As Martijn said, there isn't Head First EJB 3 book. If you're going to take SCBCD 5 certification,
you should read many different books/pdfs. Among them I adivce:
- O'Reilly Enterprise Javabeans 3.0 (To learn how EJB 3 does work)
- Apress Pro EJB 3
Java Persistence API (focused on JPA)
- The EJB 3 Specification itself (it's a free PDF)
- And finally, and most important in my opinion, MZ's Study Guide:
http://java.boot.by/scbcd5-guide/
Regards, Jair Rillo Junior
http://www.jairrillo.com/blog, SCJA 1.0, SCJP 1.4, SCWCD 1.4, SCBCD 5.0, IBM SOA Associate (Test 664).