Long before Dr. Bob Rotella made tweaking a golfer's head as important as tweaking his swing, Tim Gallwey, who knew virtually nothing about the mechanics of the game when he penned the first edition of this visionary work, understood that even the best technique collapses when the mind cracks under the game's pressure. Gallwey's ultimate insight into the game was that a golfer's mind is a golfer's worst enemy; too much thinking only gets in the way.