Book excerpt: This beautifully illustrated book is a must-have for growers, vintners, and enthusiasts. Inside you'll find information on ripening periods for 53 varieties grown in California, ripening dates of varieties by period and growing district, and detailed illustrations of grapevine structure. Most valuable of all is the discussion of the 36 major wine grape varieties grown in the state. Every variety receives an overview of synonyms, source, physical characteristics, harvest periods and methods, and winery use. Each variety is highlighted by close-up photography of its clusters, leaves, and leaf shoots.