The Psychology Of Persuasion $ 32.44 Product information Paperback: 336 pages Publisher: Harper Business; revised edition (December 26, 2006) language: English ISBN-10: 006124189X ISBN-13: 978-0061241895 Product size: 5.3 x 0.8 x 8 inches Influence is a classic book on persuasion that explains why people say "yes" psychology-and how to apply these understandings. Dr. Robert Cialdini is a pioneering expert in the rapidly expanding field of influence and persuasion. His 35 years of rigorous, evidence-based research and a three-year research project on what motivates people to change behavior led to this critically acclaimed book Packing list Psychology x1