Dr. Bob Rotella is the bestselling author of a dozen books, including Golf Is Not a Game of Perfect, The Unstoppable Golfer, and How Champions Think. He was the director of sport psychology for twenty years at the University of Virginia, where his reputation grew as the expert champions talked to him about the mental aspects of their game. Rotella was a consultant multiple times to the United States Ryder Cup Team. His golf client list includes Hall of Famers Pat Bradley, Tom Kite, Davis Love III, and Nick Price, as well as many of today's stars, such as Justin Thomas, Darren Clarke, Jim Furyk, Padraig Harrington, Brad Faxon, and Rory McIlroy. A long-time consultant to Golf Digest, he lives in Virginia with his wife, Darlene. Bob Cullen is the co-author, with Dr. Bob Rotella, of Golf Is Not a Game of Perfect and other best-selling works on the mental game. A former contributing editor at Travel & Leisure Golf, he has reported on courses from datelines as diverse as Slovenia, Kazakhstan, Russia, and Iran.