50 Ways to Work Out on the Ball is filled with moves that will strengthen, lengthen, tone, and stretch your body like no other form of exercise can. You'll find moves for every fitness level-beginner, intermediate, and advanced-and step-by-step instructions and illustrations for each fat-burning, muscle-toning, ab-flattening move. Do them in order, or mix up the cards to create a unique workout! Get the best body possible-all on the ball! Elizabeth Gillies develops and stars in numerous fitness videos, including Zone Pilates, Stability Ball Workouts, Stability Ball for Dummies and her own Core Fitness series of videos. She is the owner and artistic director of The Insidescoop Studios in New York, where she has been certifying teachers in Pilates method since 1997.