Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Back to the bookstore

I very seldom, if ever, re-sell a book. But this Cornwell book was one big disappointment. Not only did she fail miserably to make a convincing argument for her theory on Jack the Ripper, she did it in the most tedious and boring way. Arrrrgh. Of all the "candidates" for Jack the Ripper, her theory is the weakest and certainly not up to the investigative work she writes into her fictional Kay Scarpetta. I have always enjoyed Ms. Cronwell's books, but this one goes back on the market. What a waste.If you want to read a more compelling and convincing theory, pick up The Diary of Jack the Ripper by Maybrick.