The Body Principal Author:Victoria Principal Victoria Principal offers a system of simple, safe resistive exercises that can be done almost anytime, anywhere - sitting in the office, driving a car, standing in line at the supermarket, or talking on the telephone. The Body Principal Program is unique in that it takes only 15 to 30 minutes a day and can be conveniently integrated into the bu... more »siest schedule. The Body Principal, a #1 bestseller, offers a fast, easy way to get into shape, feel and look great, and make fitness and conditioning a part of your life forever.« less