In this delighftul and edifying tour of America's favorite pastime, Roger Kahn presents the story and evolution of pitching and the people who changed the course of baseball by playing, what he calls 'chess at 90 miles per hour.' With commentary on grips, tactics, physics, and also the intelligence, poise, and competitive fire that has inpsired some of the greatest hurlers in history, as well as Kahn's own deep knowledge of the game, this book sheds new light on baseball's most pivotal contest.