Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Good book to skim through - Ignore Paid Supporters

Was looking around the Internet for reviews on this book, and I found it interesting that I found the same review below (entitled: "I should have bought this 10 years ago...") on three other sites.Take the 5-Star reviews accompanied with subject lines you'd normally seen in your junk email with a grain of salt.