Instruct: Classify Amazon reviews into positive or negative sentiment
Query: I've never read this book. But I think it is horrible.

I am a computer engineer; an expert in all things relating to computer hardware and software. I've never read this book but I will tell you now: In my EXPERT opinion, you should NOT purchase this book under ANY circumstances. The reason I've never read this book is because I know for a fact that it is a useless compilation of garbage. If you enjoy wasting your time, then get this book. If you are interested in Java programming, you should consider an alternative. I do not endorse any competing book. I will just reiterate one final time: THIS IS NOT THE BOOK TO GET!-David Zorba-Electrical and Computer Engineer