There is just no way a serious golfer can do without this book. Bob Rotella teaches you to think absolutely, 110%, the most effective way possible. It is the major reason why, on the brink of giving the game up two years ago, I'm now enjoying my golf and playing better golf than ever. I'm also a Category 1 golfer, handicap 3, and will continue to improve because of this (and Golf is Not A Game of Perfect). Put it this way, I have just lent my copy to one of last year's victorious Walker Cup team who is now a budding pro with sights on the Masters etc. How can a club golfer with sights on the Club championship disagree with that?