The Foxfire Book of Appalachian Cookery
The Foxfire group are dedicated to preserving and recording the traditions of America's Appalachian area, and this book of over 500 recipes, with black and white photography of the people of the area, is a classic from them.  The food is nutritious, easy to prepare, and totally unpretentious, including recipes for potato candy, cry-baby cookies, lime pickles, and much more.