Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Great Exercises

This book is great. The warm-up exercises alone are worth the miniscule price of the book. The first time I used the book, my neck and shoulders felt so much looser after doing the rotation exercises. I wish there were more stretching postures (so minus one star)---but then again, this is a book about strength, not stretching. For such a small price, give it a try!