Robert Cialdini is recognized worldwide for his inspired field research on the psychology of influence. He is a New York Times bestselling author. His books, including Influence, have sold more than three million copies in thirty-three languages. Dr. Cialdini is Regents' Professor Emeritus of Psychology and Marketing at Arizona State University and the president and CEO of Influence at Work, an international company that provides keynotes and influence training on how to use the lessons in Dr. Cialdini's books ethically and effectively.