Instruct: Classify Amazon reviews into positive or negative sentiment
Query: I thought this book rocked!

I thought the book "Betrayal" was a great book. After I read a few chapters, I had to keep reading more. I finished this book in one day. What I like about R.L. Stine's books is that they keep you interested. I think his Fear Street books are better than his Goosebumps. If I were you, I would read it.