the authors are pioneers in the field. i am sure there is alot to be learned from them. having said that... the book is ok, packed with information if you can manage to understand it upon your first read through... the examples in the book have been uploaded from PREVIOUS book versions. there are TONS of errors in the code.. kudos to you, if you can manage to fix the bugs and run the code.
3 stars for not being able to run the code