This book represents the first realistic methodology for CBD I've read.
I've read the Catalysis book, which is overly complex for most people. And Paul Allen's book, which takes a higher level view, never getting down to the nitty-gritty detail required.
This book gives a step by step breakdown of how to do analysis and design for CBD targeting EJB and COM+. And does so, for the most part, realistically - given the nature of EJB and COM+.
Recommended above other books on the subject, although a reading of the Catalysis book, which is cited often in this book, would also be useful.