Dr. Joe Schwarcz is a professor of chemistry and the director of the office for chemistry and society at McGill University in Montreal, Canada. He hosts a weekly phone-in radio show, is a regular on Canadian television, gives numerous public lectures, and writes columns for the Montreal Gazette. He has received many honors, including the prestigious American Chemical Society’s Grady-Stack Award for Interpreting Chemistry for the Public. He is the author of Radar, Hula Hoops, and Playful Pigs and That's the Way the Cookie Crumbles.