This book contains some training topics that are not possible for you to achieve at home. They require some equipments that might be only available at gyms. Many techniques don't seem to apply to badminton strengthening. The stretches are useful but not enough. The plastic (or nylon) shuttlecock on the book cover is a big turn down. If someone who picks up this book trying to better in badminton, he or she is definitely not playing with a plastic shuttlecock. To sum it up, this book is not worth buying.