Patterns of Enterprise Application Architecture

Every now and then I order a book to study through my work at Chess. The title of this book is quite ambitious, and it had a good review on Slashdot, so I decided to try it. Unfortunately it was not as good as the cover looks. The books is well-written, but contains hardly anything new. Most of it is just basic computer science, or can be found in older books on J2EE patterns.