Bulent Atalay is a scientist and artist with roots in Turkey, England, and the United States. He is a professor of physics at the University of Mary Washington, an adjunct professor at the University of Virginia, and a member of the Institute for Advanced Study, Princeton. He is the author of Math and the Mona Lisa (Smithsonian Books, 2004), and a frequent lecturer on the genius of Leonardo. Keith Wamsley, is trained in classics and literature. He teaches secondary school in Fredericksburg, Virginia, and was a contributing editor on Math and the Mona Lisa (Smithsonian Books, 2004).