This book provides step by step instructions for increasing concentration, and improving memory, mathematical ability and study methods. These instructions are clear, and the usefulness of each technique is documented to my satisfaction. Possible variations of technique are piled one on top of the other, which I found a little overwhelming, and I thought the book was very dry reading, but that is to be expected in a manual.
I did well in school, and never felt the need for these techniques, and I don't particularly have a need at this time, either. The section on speed reading was especially irrelevant for me. I enjoy reading, and since I have become an author, I notice more and more of the nuances that make up an author's style. I really want to read all of what is written. You might get the jist of a book by flying through it, but I think you'd miss a lot of the scenery.
I am uncomfortable with meditation that requires a vocalized mantra, which the author makes an essential part of his program. He insists that daily, regimented practice of eastern style meditation to relax the mind must be grasped before you attempt the remaining abilities, which discouraged me from trying them.
Despite my reservations, I think that people who don't mind eastern meditation practices and have a need to improve concentration, memorization, etc. could find this book to be very helpful.
I was given a digital copy of this book in exchange for a review.