Dr John Kounios is Professor of Psychology at Drexel University and has published cognitive neuroscience research on insight, creativity, problem solving, memory, knowledge representation and Alzheimer's disease. He has held research and faculty positions at Princeton University, the University of Pennsylvania, and the National Center for Post-Traumatic Stress Disorder and is a Fellow of the Association for Psychological Science. He lives with his wife and children in the Philadelphia area. Dr Mark Beeman is Professor of Psychology and Neuroscience at Northwestern University, and researches creative problem solving and creative cognition, language comprehension and how the right and left hemispheres process information. He is a Fellow of the Association for Psychological Science and a Kavli Fellow of the National Academy of Sciences. He and his children live just outside Chicago.Dr Kounios' and Dr Beeman's insight research is displayed in an exhibit in the Museum of Science and Industry in Chicago. Their work has been reported by The Times, the New Yorker, the New York Times, the Wall Street Journal, BBC's Horizon, National Public Radio, Scientific American Mind, O, The Oprah Magazine and other international print and electronic media.