Synthesized answer
The provided passages explain that Robert B. Cialdini's book "Influence" details the psychology of why people say yes [1]. The book outlines Universal Principles of Influence, also referred to as Principles of Persuasion [1, 2].
These principles include Reciprocation, Commitment and Consistency, Social Proof, Liking, Authority, and Scarcity. A new principle, Unity, has been added for this edition [2]. The passages state that understanding and applying these principles ethically is cost-free and deceptively easy, and they are backed by extensive scientific research [2]. The book aims to teach readers how to use these principles to influence others and also how to defend themselves against unethical influence attempts [1].
Synthesized from the book passages below. Chat with the book on Feynman for follow-up.
From the book
Title: Influence, New and Expanded by Robert B. Cialdini, PhD Description: The foundational and wildly popular go-to resource for influence and persuasion—a renowned international bestseller, with over 5 million copies sold—now revised adding: new research, new insights, new examples, and online applications. In the new edition of this highly acclaimed bestseller, Robert Cialdini—New York Times bestselling author of Pre-Suasion and the seminal expert in the fields of influence and persuasion—explains the psychology of why people say yes and how to apply these insights ethically in business…
think you know these principles, but without understanding their intricacies, you may be ceding their power to someone else. Cialdini’s Principles of Persuasion: Reciprocation Commitment and Consistency Social Proof Liking Authority Scarcity Unity, the newest principle for this edition Understanding and applying the principles ethically is cost-free and deceptively easy. Backed by Dr. Cialdini’s 35 years of evidence-based, peer-reviewed scientific research—including a three-year field study on what leads people to change—Influence is a comprehensive guide to using these principles to move…