The Bar Method exercises have been such a great investment as I find myself doing them on a weekly basis. Derived from the Lotte Berk Method, these mostly ballet and pilates-inspired movements in combination with calisthenic exercises, will especially work your thighs and seat muscles in a way that classic squats and lunges alone simply can't. The abdominal portions are especially effective - becoming increasingly challenging as you progress and build more strength in your core. It is especially important to get your form right when doing these exercises to really reap all of its potional effects, and Burr Leonard does an excellent job with her insctruction and queing. The arms portions consists of pushups and tricept dips on "Fat Free," and the use of light weights on "Designer Sculping," which are quite challenging due to their uniquely straight alignment. The music is pleasantly upbeat throughout, with Enigma-like "cool-down" music at the end of both DVDs which is absolutely wonderful! The series of stretches between each exercise and final stretch promote overall flexibility and rejuvination. Overall, these are amazing workouts consisting of many small, isometric movements that work deep in your muscles to help create a more cut, lean look.