Good details and overall a good book,
Rezension bezieht sich auf: Java 2 Platform, Enterprise Edition (Java (Addison-Wesley)) (Taschenbuch)
The book explains all the components of the J2EE specification and also talks about how they work with each other. The sections on EJBs and Servlets are quite comprehensive and definitely clarify a lot of misconceptions.
Overall a good book for any Enterprise developer.