Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Excellent factual information

This book fills a definite need for adolescents. It presents the facts, not fallacy, to all of the questions they have that parents and other caregivers may be too embarrassed to talk about. It is from an extremely reputable source (Columbia University), and is readable and accessible to the average teen. Kudos to the people who put together "The Go Ask Alice Book of Answers".