Rating: 

So far, i had been using the above two articles as reference point. The book however, does a good job of the subject. The UML diagrams have been well done (theres a small intro to UML at the beginning). What i like is the way the design patterns have been categorized into presentation and business tier.

Overall, i feel that the book could have also included some more complex examples. After all J2EE design patterns is a complex subject. I feel that the book could have done with some chapters on mixing and matching patterns depending on requirements.

Overall the job is well done and i would recommend the book to people who have yet to step into the world of patterns or are looking at learning a bit more than what they already know (like me). For those of us who are looking at something more, we will have to wait and see what oreilly comes up with next.