Instruct: Classify Amazon reviews into positive or negative sentiment
Query: The Roots of Modern Ideas About Boyhood

Throughout history, boys have always been more aggressive and prone to misbehavior than girls. At least that is the common perception. According to Kenneth B. Kidd in his new book Making American Boys, the scouting/camping movement that began in the early 20th Century was geared towards harnessing male adolescent aggressiveness in constructive directions. This movement was so successful that our contemporary ideas about boys and how to raise them came from the Boy Scouts.This is an amazing and informative book.