Instruct: Classify a given Amazon review into positive or negative sentiment.
Query: Haircutting for Dummies

This book has saved me a lot of money and grief while cutting my family's hair. Having a whole book's worth of professional haircutting tips is priceless. I recommend Haircutting For Dummies to everyone who wants to cut their children's, husband's, wife's or friends' hair. I agree that Ms. Spear does promote haircutting as a career, but that's fine with me. I like getting insider tips about how to make my family look their best.