Instruct: Classify a review as either positive or negative.
Query: not too helpful

I play tennis and was hoping this book would help me to teach my son. Much of the information is very basic and would be useful only to a non-tennis playing parent. If you play tennis and want help in teaching your child, I doubt the book will offer any useful insights. The drills are not particularily helpful because they are geared to groups. This book will be useful only to the true novice parent-teacher