This phenomenally successful guide to mastering the game from the inside out has become a touchstone for hundreds of thousands of people. Billie Jean King has called the book her tennis bible; Al Gore has used it to focus his campaign staff; and Itzhak Perlman has recommended it to young violinists. Based on W. Timothy Gallwey's profound realization that the key to success doesn't lie in holding the racket just right, or positioning the feet perfectly, but rather in keeping the mind uncluttered, this transformative book gives you the tools to unlock the potential that you've possessed all along.