“Robert Cialdini, PhD, has been the go-to psychology expert in marketing since his best-selling book Influence: The Psychology of Persuasion was first published in 1984.”

— American Psychological Association

“Dr. Robert Cialdini has long been recognized as a leading voice in the fields of persuasion, compliance, and negotiation.”

— Barry Ritholtz

Robert Cialdini has had a greater impact on my thinking than any other scientist. This book demonstrates six to eight ways in which the quirks of your own mind will frequently prove dysfunctional to your best interests.”

— Charlie Munger

“Cialdini is the expert on influence. His research reveals principles that any leader, or any person for that matter, can apply.

— Constance Dierick

Robert Cialdini is the Undisputed Heavyweight Champion of persuasion.

— Eric Barker

Cialdini gave an incredibly illuminating talk. He began in the face of classical oratory tradition - with the big conclusion, 'tell me what you pay attention to and I will tell you who you are.' With astounding empirical evidence, we were persuaded on the theory of 'pre-suasion,' that persuasion begins in the moments before you make your request. A proposition that sounds vaguely pseudo-scientific at first, bringing to mind some clandestine brain-conditioning reminiscent of A Clockwork Orange, yet one that Cialdini had verifiable and reliable science to back. Of particular interest was his discussion of the Lamy et. al. study wherein middle-aged passersby were twice as…”

— Kendya Goodman

He’s the most practical psychologist on Earth

— Richard Thaler

No one in advertising had considered investigating the persuasive power of an admitted weakness until Cialdini.”

— Rory Sutherland

“Cited by everyone from Tim Ferriss to Forbes, Dr. Cialdini is responsible for bringing the science of persuasion in an accessible way to the business world.

— Ross Kingsland

His success is Shakespearian – he gets applause from both scientists and practitioners.

— Steve Booth-Butterfield

"He blew everybody away. They were thrilled."

— Steven Mosey, Ph.D., Bose Corporation