


Shelf and handling wear to cover and binding, with general signs of previous use. Wear and tear on the covers. Notations made on a few pages. Secure packaging for safe delivery.
The timeless guide to achieving the state of "relaxed concentration" that's not only the key to peak performance in tennis but the secret to success in life itself--now in a 50th anniversary edition with an updated epilogue, a foreword by Bill Gates, and an updated preface from NFL coach Pete Carroll"Groundbreaking...