Book excerpt: Already a classic in its second edition, wine critic Anthony Dias Blue's annual guide has changed novice and expert wine enthusiasts' lives -- and wallets -- for the better. With an emphasis on American wines and the hidden treasures to be discovered at your local wine shop, Anthony Dias Blue's Pocket Guide to Wine 2007 tells you exactly what you need to know to choose the perfect wine for every occasion, whether you're dining in or dining out. ( THIS 2007 EDITION FEATURES ) ! An updated and extended winery section broken down by country and region, including key facts, best wines, and overall ratings for each listing ! A basic primer on wine appreciation ! Tips on how to judge wine ! A comprehensive description of all the important grape varieties ! A quick reference guide for on-the-spot decisions