Darlington does for zinfandel what John McPhee did for "Oranges". In attempting to uncover the origins of that most American wine grape, Darlington roams among the top producers extant (most are still the top now in 2007) and interviews winemakers including Draper and Peterson. Darlington has a passion for zinfandel wine and it shines through in his writing. This is an excellent read even if you are not that much into wine. ( )