Most of the 23 million American men who lift weights do so to get bigger; unfortunately, many of them are going nowhere with watered-down bodybuilding routines that don't help them actually getstronger. Eric Cressey's cutting-edge four-phase program, featuring constant progression, variation, and inspiring goals, keeps you focused on increasing strength along with muscle mass, helping you achieve the fittest, most energetic, and best-looking body you've ever had-with fewer hours at the gym.Matt Fitzgeraldis an endurance sports writer, coach, and nutritionist. He is a coach and spokesperson for PEAR Sports and former senior editor atTriathleteandCompetitor. Fitzgerald has contributed toMen's Health, Outside, Runner's World, Shape, and other publications. He lives in Northern California with his wife.