Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Good Read!!

This book was really entertaining, it is my first serial killer novel book, but it was great read. If you are ready for graphic depictions of a sick mind; this is the book you are looking for. It had my attention, and took me only a day and a half to finish it. It really grabs your attention, wanting to see what happens in the end. I recommend it.