Instruct: Classify Amazon reviews into positive or negative sentiment
Query: The Little Red School Book

Originally written in Danish for European teenagers in 1971. The Little Red School Book is a very straightforward, informative book about sex. It's highly unusual in its approach - not preachy or clinical. It offers very matter-of-fact details that might shock some American parents even today. It's so unusual in its approach it was never distributed to American teens. It's quite rare but for people who love unusual and rare books, I recommend this one highly. My guess is you've never read anything quite like it.