A must read for every serious golfer who wants a thorough understanding of the fundamentals of the golf swing. It's one of the best books on the golf swing in publication and truly focuses on the motions and actions present in all sound golf swings. Explanations and the many illustrations are easy to understand. Hebron quotes Ben Hogan and Bobby Jones throughout the book. Originally his Masters thesis, now a classic in the industry. Third revision refines the book even more than prior editions.