Today i passed SCBCD WITH 88% Thanks to Head First EJB book and author. I think this book is innovative way of teaching. i never read anything like this.it is must book for EJB my preparation : 1.studied HFEJB. 2.read specification 3.took test in ejbcertficate it took 8 weeks. i never had real time experience in using EJB. thanks again to HFEJB authors.