Instruct: Classify a given review as either positive or negative.
Query: Use the Internet

A waste of money. A waste of bookshelf space. Outdated as soon as you look at it. Prices are so flexible- you can thank or curse eBay-that it's a waste. Books on Collectibles are out-dated if you're searching for a price for your gramma's antiques. If you're interested in BROWSING or taking a few minutes to relax, then these books are okay. The internet is the only way to "know your collectibles" I'm afraid in 2010.