Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Great book, well worth the money!

Although I've been using eBay for several years, and have been a Powerseller on and off, I still learned a lot from this book. It was also an entertaining and interesting read and included a few interesting profiles of popular Powersellers with their stories of how they got started, what they sell, etc.I certainly recommend this book for anyone interested in selling on eBay-well worth the money and certainly way better than any of the eBay for Dummies books.