Nearly two decades after the debut of the first ACE Personal Trainer Manual, the American Council on Exercise continues to lead the way by providing the most comprehensive resource on personal training you will ever find. This all new fourth edition of ACE's best-selling textbook offers expanded coverage of a personal trainer's primary job responsibility-assessing each client's current level of health and physical fitness and then developing a safe and effective fitness program that will lead to a lifelong commitment to a more active lifestyle and better health.