Instruct: Classify Amazon reviews into positive or negative sentiment
Query: I was gravely disappointed in this book.

Why and how it became a "best" of recommendation is more of a mystery than the one in the book. The book has flashes of good writing, but the majority of it is a cliche ridden exposition on how to write by formula. I found the characters unbelievable, the plot was almost nonexistent since it was obvious by the third chapter who the murderer was, and the dialogue sometimes painfully silly. The torture/rape/murder scenes were detailed to a disturbing degree. All in all a book to avoid.