TY - BOOK AU - Cialdini, Robert B. TI - Influence, new and expanded : : the psychology of persuasion SN - 9780063138803 (pbk.) U1 - 150 CIA PY - 2021/// CY - New York PB - HarperCollins publishers KW - Influence (Psychology) KW - Persuasion (Psychology) N1 - Summary : "In this highly acclaimed New York Times bestseller, Dr. Robert B. Cialdini-the seminal expert in the field of influence and persuasion-explains the psychology of why people say yes and how to apply these principles ethically in business and everyday situations"-- Provided by publisher; "This expanded edition includes: new research and examples; new chapter on the unity principle; new insights for digital businesses"--Dust jacket Revised edition of the author's Influence, ©1993 "First Collins business essentials edition published in 2007"--Title page verso Originally issued under title: Influence : how and why people agree to things, 1984 ER -