Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Don't waste your time on this book

This book is bad. Don't waste your time or money. I gave this book one star -- and one star is a gift -- because there is no lower rating. The book is amateurish. The plot is implausible and is never developed. Characters are silly stereotypes from somewhere. This book reads like a rough draft written as a creative writing assignment by a college freshman who has read too much Clancy and Ludlum. I am a retired Army officer with 25 years in intelligence operations -- I laughed at every page -- the situations, the actions, everything about this book is silly. The author hints that this book is semi-biographical -- I doubt it. Here's some advice for the author: I understand you have sequels in the works -- save your time.