Instruct: Classify Amazon reviews into positive or negative sentiment
Query: This book is great! :)

You may be wondering if this book is worth your money. Well last year I bought this book when I was running for Student Council President. I had some really tough competition (on top of being the only girl) but with the great ideas and positive outlook I got from this book I won the presidency! I was so happy I personally contacted the author (Jeff Marx) to thank him! And, on top of that, I have been re-elected as President for the next year! Get the book, it helps, really it does! (Jeff, sorry it took so long to write this! I switched e-mail accounts!)