Influence

Influence is the definitive book on the science of persuasion, explaining why people say “yes” and how subtle psychological triggers shape human decisions. Robert Cialdini breaks down the six universal principles of influence—reciprocity, commitment, social proof, authority, liking, and scarcity—using decades of research and real-world examples.

This expanded edition adds new findings, updated case studies, and fresh insights into persuasion in the digital age. Whether you’re in business, marketing, sales, or simply want to understand human behavior better, this book teaches you how influence works ethically and how to spot manipulation before it happens.

A must-read classic for anyone who wants to master communication, negotiation, and decision-making.