The techniques mentioned rocks. This book is an easy read…one can skim through it. I felt that if we take out the techniques, then this book is just worthless pieces of paper. The advice given in the book is good and would work for those who stick with it. That being said, Hal would have to work on his writing and the way he presents the statistics. He does not name the source, so there is no guarantee whether it is right or wrong and one has to take these at face value (something I do not do).