Nudge
Nudge
Phill Agnew
Robert Cialdini: "Everyone Should Memorise This Persuasion Principle"
27 minutes Posted Dec 1, 2025 at 6:30 am.
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His book Influence sold 5 million times. 
He’s known as the Godfather of Influence. 
He’s arguably the best-known behavioural science practitioner. 
And he’s finally (after years of pestering) joining me on Nudge. 
Ladies and gentlemen, today I present: 
Robert Cialdini and the persuasion principles that EVERYONE should memorise.
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Cialdini’s Influence Unleashed Event: https://cialdini.com/decevent
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Today’s sources:
Agnew, P. (Host). (2021, November 22). #69: Reciprocity | How one nudge saved 246,184 lives [Audio podcast episode]. In Nudge – Marketing Science Simplified. YouTube. https://youtu.be/0QxcahCnoCs
Cialdini, R. B. (1984). Influence: The psychology of persuasion. HarperCollins.
Cialdini, R. B., Cacioppo, J. T., Bassett, R., & Miller, J. A. (1978). Low-ball procedure for producing compliance: Commitment then cost. Journal of Personality and Social Psychology, 36(5), 463–476.
Deutsch, M., & Gerard, H. B. (1955). A study of normative and informational social influences upon individual judgment. The Journal of Abnormal and Social Psychology, 51(3), 629–636.
Friedman, H. H., & Rahman, A. (2011). The effect of a gift-upon-entry on sales: Reciprocity in a retailing context. International Journal of Business and Social Science, 2(15), 155–162.
Regan, D. T. (1971). Effects of a favor and liking on compliance. Journal of Experimental Social Psychology, 7(6), 627–639.