The source for this book is for an entry level 3D engine, which is just what I wanted. But a lot of the theory (coll det etc) in the source is not explained in the book. Rather than explaining fundamental aspects they seem to throw in loads of detail about the topics that they dont seem to have covered and taken for lots of articles that you can find on the web (gamasutra for one).
Saying that the source is nice and taught me a lot, bsp trees + a bit about collisions. Im glad I have the source but the book seems thrown together and shabby. I just think they could have done a better job making it readable starting 3D engine book rather than a shabby reference book.