Robert B. Cialdini, Ph.D., is a world-renowned expert in the fields of influence, persuasion, and negotiation. He is best known for his groundbreaking research on the psychological principles that lead people to say “yes.” As a professor emeritus of psychology and marketing at Arizona State University, Cialdini has spent over three decades studying how individuals and organizations use these principles to persuade and influence others. His seminal book, Influence: The Psychology of Persuasion, has sold millions of copies worldwide and has been translated into over 30 languages.

Cialdini’s work is distinguished by his unique approach of blending rigorous academic research with real-world applications. He often immerses himself in environments where influence is a critical factor, such as sales organizations, to observe these principles in action. His insights have made him one of the most sought-after speakers and consultants for businesses, governments, and NGOs looking to improve their communication and leadership strategies.