Instruct: Classify Amazon reviews into positive or negative sentiment
Query: This book really isn't worth the money.

I am not a big fan of this book. If you subscribe to "The Autograph Collector" magazine, you would know that 80% of the magazine is advertisements, and you would think spending [money] on a book you wouldn't have 25 pages of ads. Also, many of the signatures in this book do not match signatures I have received in person. In stead of the ad's they should have used that extra 25 pages to list more examples of stars signatures, or at least list more people. I would suggest that they make the signatures themselves smaller, as many people are copying the signatures out of the book onto index cards and photos, and selling the forgeries on ebay. All together, I would suggest you buy a different book; this one is not even worth what you would pay for it used.