If you want to ap do not read his book. Years ago someone on another forum did his 90 day program and he also did the ap course. He would have spent a lot of money and a lot of time doing the exercises. At the end of it he could not ap. He was very discouraged so he thought he could not do it so he gave up. I bought the book years ago and I could not stand doing the exercises. The exercises are not a requirement to ap. I threw the book in the bin. I did not learn from a book. I learnt from practicing. As Xanth said people are out to make money. There is nothing wrong with that as everyone wants to make money.