In The Power of Your Back and Spine Book, Tracy Markley shares illustrations of many important spine and back muscles. She teaches the physical movements these spine and back muscles perform for everyday activity. Tracy feels if we have the knowledge of our muscles and movements, it guides us to stay injury free during our daily activities and exercise programs. Having this knowledge will help fight against decline and weakness that often come with aging and/or disease. It will also assist in recovery and rehab from injuries, stroke, surgeries and rebuilding walking abilities. This anatomy book is a vital resource for all ages, including students, fitness fanatics, athletes, fitness professionals, physical therapists, chiropractors and medical professionals.