Many people start to run because they want to get in a better shape. This book teaches your mind to get in a better shape too. You learn to focus in a new way and you are able to concentrate much better. Your mind learns not to wander so much and stay within the race. I have used the exercises in the book for my preparation of the Boston Marathon which I finished, despite running with an injury, with a new personal best by more than two minutes. I recalled the learned exercises during my preparation in the race and was even able to float up heartbreak hill without considerably more effort. I wonder how I would have raced hadn't I been hindered by a nagging hamstring injury.