The foundational and wildly popular go-to resource for influence and persuasion-a renowned international bestseller, with over 5 million copies sold-now revised adding: new research, new insights, new examples, and online applications. In the new edition of this highly acclaimed bestseller, Robert Cialdini-New York Times bestselling author of Pre-Suasion and the seminal expert in the fields of influence and persuasion-explains the psychology of why people say yes and how to apply these insigh...