The Botany of Desire: A Plant's-eye View of the World, by Michael Pollan (TPB, 2002, $2.50)
"Pollan ingeniously demonstrates how people and domesticated plants have formed a similarly reciprocal relationship. He masterfully links four fundamental human desires- sweetness, beauty, intoxication, and control- with the plants that satisfy them: the apple, the tulip, marijuana and the potato... Just as we have benefited from these plants, the plants have also benefited at least as much from their association with us. So who is really domesticating whom?"
Look for this book in the biology section, avail. 11/29.