Hi Vic,
Definitely Yes, I would say
But since it is more Practical/POC oriented, I would suggest read another book from various available books to get the thorough understanding of the theoretical concepts and go through related recipes in Cookbook.
Regards, Suhas S. Mandrawadkar.
Certifications: SCJP 6, SCWCD 5, Oracle WebLogic Server Administrator, OCE Java EE 6 EJB Developer