Now, in Jancis Robinson's Guide to Wine Grapes, Robinson provides wine aficionados with a handy, on-the-spot guide to the most central aspect of wine making--the grapes themselves. Here are over 850 grapes, ranging from such widely acclaimed vines as Cabernet Sauvignon, Chardonnay, Muscat, Pinot Noir, Riesling, and Sauvignon Blanc, to economically important if less distinguished vines such as Airen, Grenache, Muller-Thurgau, Trebbiano, Syrah, and Rkatsiteli. Robinson offers a fact-filled introduction--discussing everything from rootstocks and wine blends, to vine pests and disease--and glossary of technical terms (from botrytis and carbonic maceration, to fanleaf and foxy, to skin, sugars, tannins, and yield). She then examines the world's grape varieties in alphabetical order, describing the basic characteristics of the wine produced by the grape (dry, sweet, high or low acidity, the bouquet), its likely quality, the regions that produce the best wine, and, if a blended wine, the blends that yield the best results. (As an added guide to the wine a grape might produce, the Guide includes an easy-to-use visual aid: a horizontal bar with a band which shows the range of quality, from ordinary to superb.) Robinson also shares much fascinating wine history, her deep insight into the wine industry, and more important, her own judgment on a wine. And Robinson does not hedge in judging a wine: discussing Carignan, France's most planted red wine, she comments "Its wine is high in everything--acidity, tannins, color, bitterness--but flavor and charm. This gives it the double inconvenience of being unsuitable for early consumption yet unworthy of maturation." And for Trebbiano, the most planted white grape in Italy (and with Ugni Blanc, which is the name of the grape in France, the second most planted white grape in the world), Robinson notes "the word Trebbiano in a wine name almost invariably signals something light, white, crisp, and uninspiring."