If you want to build more muscle while burning fat, then I would recommend the Muscle Building program. If you are happy with your existing muscle mass and want to maintain that muscle, while burning fat and tightening up, then I recommend the Bikini Body program. Both of these programs were written for training to take place in a gym, although some people have been able to complete the programs from a home gym. If you do not have a well equipped gym, then the Home Edition is a totally kick-ass program that doesn't slack off just because you're training from home!