MICHAEL POLLAN is the author of nine books, including This Is Your Mind on Plants , How to Change Your Mind , Cooked , In Defense of Food , The Omnivore’s Dilemma , and The Botany of Desire , all of which were New York Times bestsellers. He is also the author of the audiobook Caffeine: How Coffee and Tea Made the Modern World . A longtime contributor to the The New York Times , Pollan teaches writing at Harvard University and the University of California, Berkeley. In 2010, Time magazine named him one of the one hundred most influential people in the world.