I had just the book and worked with it for 6 weeks and was totally frustrated so I ordered the tapes and before the tapes even arrived I got a book to gel finally. I think you can make quicker progress with the tapes but there is more information in the book so if you can religiously follow every exercise and not cheat, it's fine. In the back of the book is a coupon for a Paraliminal for $6, be sure to get one, they will relax you into that state and all you have to do is the opening and closing affirmations and mantra's and you got the whole course down.
