Recently, I picked up a copy of The BalleCore Workout by Molly Weeks after reading about it in Chatelaine at my hair dressers. 

This book combines ballet, pilates and yoga into a work out.  The author of the book combined all three styles as they each offer advantages in strengthening, stretching and improving posture.

I picked up this book as a way to supplement the workout that I do at home.  It provides fairly good explanations of the movements and alot of pictures.  It also includes 20 minute workouts and 10 minute workouts focusing on different areas such as stretching, balancing or core strength.   These  pre-made workouts are perfect for someone who wants to start getting into shape or to supplement a cardiovascular routine.