Influence: The Psychology of Persuasion, New and Expanded

Influence: The Psychology of Persuasion

Robert B. Cialdini

Why do people say “yes” — even when they don’t plan to?

Influence is the definitive guide to understanding how persuasion works and why it is so powerful in everyday life. Drawing on decades of scientific research in psychology, Robert B. Cialdini reveals the hidden principles that shape human behavior and decision-making.

In this new and expanded edition, Cialdini updates his groundbreaking work with fresh research, modern examples, and insights into how persuasion operates in today’s digital and online environments. From marketing and sales to leadership and social interactions, the book explains how influence is used — ethically and unethically — and how to recognize it.

You’ll learn the core principles that drive compliance and persuasion, helping you communicate more effectively, protect yourself from manipulation, and influence others with integrity.

Trusted by professionals, leaders, and students worldwide, Influence remains the essential handbook for anyone who wants to understand the psychology behind why people act the way they do.

Understand influence. Use it responsibly. Recognize it instantly.