Wrox was slammed by the user groups for these books with ten authors. They've gotten smarter: now they only put one photograph on the cover. But that misses the point; the book is still more a collection of essays by different writers than a book.There are parts of this book that are fairly good, but overall it does not cover the material coherently, and it is 25-50% bigger than it should be for the material covered.There are better choices elsewhere. I just posted a review for the O'Reilly book, which I think is a much better choice.