*Influence: The Psychology of Persuasion* by Robert B. Cialdini is a seminal book on the principles of persuasion and how they can be applied in various contexts. Cialdini explores six key principles that influence people’s decision-making: reciprocity, commitment and consistency, social proof, authority, liking, and scarcity. Through research and real-world examples, the book provides insights into how these principles can be used to persuade others effectively, and how individuals can also recognize and defend against manipulative tactics.