Philip Zimbardo
![Philip Zimbardo](https://greatergood.berkeley.edu/images/jcogs_img/cache/photo_87_-_abcdef_-_c712674cc692b8f1d8bc813d598e3302f0aceaa0.jpg)
Philip Zimbardo, Ph.D., is a professor emeritus of psychology at Stanford University, a professor at Palo Alto University, a two-time past president of the Western Psychological Association, and a past president of the American Psychological Association. He is also the author of the best-selling book The Lucifer Effect and the president of the Heroic Imagination Project.