AlexK - Thanks for pointing that out. The book that I have I got from the library. It is the original 1974 version of the book, titled simply - The Memory Book, but this is the only book that Harry Lorayne co-authored with Jerry Lucas, and so the one that you mention is most likely the current revised edition of this book. If I am going to refer people to the book I should probably refer them to the one that you mention. I will have to go back and edit some of my posts to avert any confusion for people looking deeper into this. Thanks.