Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Very disappointing

This book does not belong with the VQS series. It does not teach you javascript. It just shows you some, don't get me wrong, useful scripts, but it doesn't TEACH. When I read others' scripts, I don't understand some of the functions because they were not taught. I STRONGLY suggest not buying this book, but trying "Designing with Javascript" by o'reilley.