Instruct: Classify Amazon reviews into positive or negative sentiment
Query: I Love This Book!

As someone who began losing my hair at age 25, I found Gersh Kuntzman's "HAIR!" to be the perfect balm for my wounded pride. Kuntzman just tells the story of mankind's crazy, insane search to rid itself of this supposed scourge with wit and a great amount of research. Who knew that the ancient Egyptians used to spread hippo fat on their bald heads? By the way, it didn't work. This is a fun and funny book about a serious subject near and, unfortunately, dear to many men's hearts.