This is the most intelligent golf book on the swing on the market. Pictures of poor swings contrasted with good swings demonstrate swing flaws that all amateurs can understand and then correct. This book, unlike any other, helped me understand the importance of the position of the right arm and wrist in the swing. That position includes not only the angle created by the forearm and wrist and the right angle created by the forearm and the upperarm but also the angle created by the juncture of the right arm assembly with the shoulder or torso, the angle that is neglected in most discussions of the golf swing. The correct angle is displayed in the swings of pros; notice when you are viewing the professional player from his/her side looking down the fairway that the edge of the forearm points more toward you than away from you; that is, less of the inside of the forearm is visible. The importance of that angle cannot be underestimated. The correct angle keeps the player from hitting a variety of erratic shots, particularly the pull. This book also provides an invaluable discussion on when a player is laying off the club, a fault present in most amateurs. Based on advice in this book, I also changed the postion of the butt of the club at address, moving it more toward the center of my body, and the results were phenomenal: a much higher and straighter shot pattern. As those who love to swing a golf club know, the devils in the details, and this book has some extremely intelligent advice on those details. Buy it, and study what it offers; it will help your game.