Instruct: Classify Amazon reviews into positive or negative sentiment
Query: The one book to read if you're considering getting a tattoo.

I'd been thinking about getting a tattoo for ten years and still hadn't gotten up the nerve to do it. Reading this book did the trick--it explains everything and helps dispel the fears. The author has a great, straightforward style and obviously knows her subject. I'm buying a second copy of the book to send to my mother, who hasn't exactly come to terms with the idea of her middle-aged daughter decorating herself with stars. If you've ever even thought about getting a tattoo, if you're in the least bit curious about what it feels like and how the whole process is accomplished--this is the book for you.