If you do not do the exercises, you lose the better half of the content in this book (so do them!); the same memory techniques are explained at least as well i other books. I read it AND did the exercises; I now have a memory out of this world. The bottleneck from-short term memory to long-term kind of vanishes. It is hard to understand why, but location, association and imagination when memorizing does the trick. Anyone should at least be aware that there really are working techniques to enhance memory is all its aspects, and this book is a good place to start. It's short as well.