Extensive scholarly training in the psychology of influence, together with over 30 years of research into the subject, has earned Dr. Robert Cialdini an international reputation as an expert in the fields of persuasion, compliance, and negotiation. His books, including Influence: The Psychology of Persuasion and Influence: Science & Practice, are the results of more than 30 years of study into the reasons why people comply with requests in business settings. Worldwide, Influence has sold over one million copies. Influence has been published in twenty languages and consistently ranks within the top one half of one percent of books sold on Amazon.com. In the field of influence and persuasion, Dr. Cialdini is the most cited living social psychologist in the world today. Dr. Cialdini received his Ph.D from the University of North Carolina and post doctoral training from Columbia University. He has held Visiting Scholar Appointments at Ohio State University, the University of California, the Annenberg School of Communications, and the Graduate School of Business of Stanford University. Currently, Dr Cialdini holds dual appointments at Arizona State University. He is a W.P. Carey Distinguished Professor of Marketing and Regents' Professor of Psychology, where he has also been named Distinguished Graduate Research Professor. Dr. Cialdini is President of Influence At Work, an international consulting, strategic planning and training organization based on the Six Principles of Influence. Dr. Cialdini's clients include such organizations as Advanta, IBM, Washington Mutual Group of Funds, Coca Cola, KPMG, AstraZeneca, Ericsson, Kodak, Merrill Lynch, Nationwide Insurance, Pfizer, Northern Trust, Prudential, The Mayo Clinic, Glaxo Wellcome, Harvard University - Kennedy School, The Weather Channel, the United States Department of Justice, and NATO.