Philip Zimbardo, Ph.D., a professor emeritus at Stanford University and past president of the American Psychological Association, designed and narrated the award-winning PBS series Discovering Psychology. He has written more than fifty books, including the New York Times bestseller The Lucifer Effect, and lives in San Francisco.
John Boyd, Ph.D., received his doctorate in psychology from Stanford University, where he worked closely with Philip developing the Zimbardo Time Perspective Inventory. His professional experience includes director of scientific affairs at Alertness Solutions, director of research at Yahoo!, and, currently, research manager at Google. He lives in Dublin, California, with his wife, Nancy.