Book excerpt: "Native to the New World, the potato was domesticated by Andean farmers, probably in the Lake Titicaca basin, almost as early as grain crops were cultivated in the Near East. Full of essential vitamins and energy-giving starch, the potato has proved a valuable world resource. Curious Spaniards took the potato back to Europe, from whence it spread worldwide. Today, the largest potato producer is China, with India not far behind. To tell the potato's story, Lang has done fieldwork in South America, Asia, and Africa."--Jacket.