Instruct: Classify Amazon reviews into positive or negative sentiment
Query: A wonderful book about communication.

If you have ever wondered about communication as asubject, this book is a fantastic primer. It is simpleand to the point. If you have ever had difficulty makingyourself clearly understood, or if you have had trouble inunderstanding others, this book gives you the answers.I have definitely improved my ability to express my viewsand understand others, since reading this book. Hubbard isbrilliant in making a difficult, yet vital subject so easyto grasp. I heartily recommend it. I've read it severaltimes. Each time I understand more.