Your body and gravity are all you need to sculpt a stronger, leaner, more muscular physique -anytime, anywhere. Work all your major muscle groups and blast off extra pounds with exercises that require only the weight of your body - no bulky machines, no special equipment, no expensive gym memberships. Challenge yourself with 75 strengthening and toning exercises and intense variations. Push your body through more than 30 routines, from beginner to hard-core. Perfect your technique with hundreds of step-by-step photo sequences. Advance to progressively more demanding exercises and routines as you gain strength.