When Barbara Kingsolver and her family move from suburban Arizona to rural Appalachia, they take on a new challenge: to spend a year on a locally-produced diet, paying close attention to the provenance of all they consume. "Our highest shopping goal was to get our food from so close to home, we'd know the person who grew it. Often that turned out to be ourselves as we learned to produce what we needed, starting with dirt, seeds, and enough knowledge...