Book excerpt: More than 40 vintners from across America and around the world reveal their winemaking secrets in this collection of fascinating interviews. In The Winemaker’s Hand, professional winemakers from Napa Valley to the Finger Lakes and from Chile to Italy share their personal approach to the ancient—yet constantly evolving—craft of winemaking. In candid discussions, they reveal how a combination of talent, passion, and experience shape the outcome of their individual wines. Wine and food writer Natalie Berkowitz interviews winemakers from small family wineries as well as large corporations that produce bottles in the hundreds of thousands. They discuss familiar and unfamiliar grape varietals, local terroirs, and the vagaries of Mother Nature—as well as how new technologies are revolutionizing historic winemaking practices. Complete with personal recipes, maps of winemaking regions, and an aroma wheel capturing the vast array of wine's complex flavors and aromas, The Winemaker’s Hand is a globe-hopping tour through the world of wine.