The six universal Principles of Persuasion that based on the research conducted by in Dr. Robert Beno Cialdini: the Regents' Professor Emeritus of Psychology and Marketing at Arizona State University and narrated by Dr. Cialdini.

Dark Patterns - Presented by Harry Brignull at the UX Brighton Conference. 2014.

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Here is the dark pattern that gets me about 50% of the time!