Brian Greene is a professor of physics and mathematics at Columbia University and is recognized for a number of groundbreaking discoveries in his field of superstring theory. His books are widely read: The Elegant Universe was a finalist for the Pulitzer Prize; The Fabric of the Cosmos inspired The Washington Post to call him the “single best explainer of abstruse ideas in the world today.” His latest best-seller is The Hidden Reality. With producer Tracy Day, he co-founded of the World Science Festival.