Instruct: Classify Amazon reviews into positive or negative sentiment
Query: The Pilates Powerhouse

After taking two pilates mat classes, I decided to get a book to see other exercises and to help me practice at home. The book is very helpful to me. But I can understand how someone who has never had a class would feel the exercises are difficult to do based on the pictures without a live instructor. The exercises are in order of body area. And the dots tell beginners where to start and how to continue to build up your pilates routine. The challenge of a book is that no one shows you what your powerhouse is and how to rotate your "clock" - this is an important element to pilates. It is the powerhouse.