Instruct: Classify Amazon reviews into positive or negative sentiment
Query: It should be less than one star

This book is more than erratic. Some awful books are at least readable, but that can't be said of this book. Mr. Hardy is a better writer than this, but unfortunately you wouldn't know it by this book. How anyone in good conscience could publish this book is truly beyond me. I truly felt like throwing this book away, or writing the publisher for a refund.