Instruct: Classify an Amazon review into positive or negative sentiment.
Query: What's next?

I'm a fan of John Douglas and I've read all of his books.Criminial profiling is a relatively new subject and I find it out interesting. However, all of his books are essentially the same theme; just formatted in a different fashion. I know that John Douglas is concerned about putting felons away. He's also a businessman who realizes that he can also make a couple of bucks on the side selling books about this subject. It's going to be interesting to see what the next book is about. By the way, I'm sure I'll read it