内容简介：Master your game from the inside out!This phenomenally successful guide has become a touchstone for hundreds of thousands of people. Not just for tennis players, or even just for athletes in general, this handbook works for anybody who wants to improve their performance in any activity, from playing music to getting ahead at work. W. Timothy Gallwey, a leading innovator in sports psychology, reveals how to focus your mind to overcome nervousness, self-doubt, and distractions.