This book explains the physiological causes of the faults we have in our golf swings and how we need to change that physiology so we can get rid of our swing faults. In my swing, I reverse pivot. I have spent untold dollars and time on lessons and practicing trying to correct this power sapping fault with little to no success. This is unbelievably frustrating to me and the pro I work with who has tried everything under the sun to break this fault. Katherine's book explains how my physiology causes my reverse pivot and what I need to do to change it. I have been working on this for about a month and already can tell a difference in my swing and the distance I am hitting the golf ball. Whatever swing fault someone has, until they change their physiology, they are not going to be able to change their swing. The book is very easy to read and the exercises easy to understand. Strongly recommend it to everyone who has struggled with the same fault for a long period of time.