Robert B. Cialdini

Robert B. Cialdini is a psychologist and Regents' Professor Emeritus of Psychology and Marketing at Arizona State University, and he has been a visiting professor at Stanford. His decades of research on why people agree to requests made Influence a long-running best-seller, with more than five million copies sold in 41 languages. His later book Pre-Suasion looks at how the moment before a message shapes its effect, and he is a member of the National Academy of Sciences.