I was hoping Brian would release an audio version of his book "Maximum Achievement", the book closest to his original audio of the "Psychology of Achievement". This new audio seems to be just that. I have only listened once to the entire program, but it seems to follow the book very closely, if not exactly. If anyone else agrees or disagrees with my comparison of book and audio I hope they will post a review and share their thoughts. Overall, I like this audio. It has a lot of bang for the buck. Although the book is read by a much older Brian Tracy (you can hear it in his voice) the content is based on the studies compiled by Brian at the time he wrote "Maximum Achievement". I recommend this audio recording. It covers a great deal of Brian's best material in one full set and at a great value. It's not Brian's best program, but it is really good.