A four-volume collection of workouts with fitness trainer Jillian Michaels. '30 Day Shred' comprises three 20-minute circuit-training workouts designed to burn calories and build strong lean muscle. 'No More Trouble Zones' is a 40-minute circuit workout aimed at eliminating those love handles, muffin tops and wobbly arms for good. The high-energy cardio workout 'Banish Fat, Boost Metabolism' is designed to boost your metabolism and shift those extra pounds, while '6 Week Six Pack' is a level 1 and 2 workout aimed at firming and flattening abs in the space of six weeks.