Influence, New and Expanded: The Essential Guide to the Psychology of Influence and Persuasion in Everyday Life

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 and everyday settings. Using memorable stories and relatable examples, Cialdini makes this crucially important subject surprisingly easy. With Cialdini as a guide, you don’t have to be a scientist to learn how to use this science.

You’ll learn Cialdini’s Universal Principles of Influence, including new research and new uses so you can become an even more skilled persuader—and just as importantly, you’ll learn how to defend yourself against unethical influence attempts. You may 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 others in your direction.

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Published May 4, 2021

592 pages

Average rating: 8.09

11 RATINGS

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Community Reviews

Marcelo Zhang
Apr 09, 2025
This is a book on how we are unconsciously influenced by others. How certain things trigger automatic responses and how this can be taken advantage of.
CRUDDYC
Sep 04, 2024
6/10 stars
It is a useful book, involving information to those who look to increase their effectiveness in positions in sectors where they may need to demonstrate authority and power, however, I did find it quite a cumbersome read.
Nitin Mittal
Aug 19, 2024
8/10 stars
PFS Book Club ---17th August Nitin presented the book "Influence" by Robert Cialdini today. Robert is considered as a Godfather of influence and this book describes the different manipulation tactics used by marketers to make you buy something you normally wouldn't have. It is about our tendency to take mental shortcuts in decision making. Throughout the book, the author quotes many examples of these manipulation gimmicks and explains why they work. Some of those that Nitin spoke about are: 1)Reciprocation - People tend to return a favor. Thus, the pervasiveness of free samples in marketing. Manish mentioned how smart sales boys in saree shops warmly greet you and make you feel comfortable by offering you tea/coffee. This way as a customer you feel obliged to buy atleast something from the shop thereby making you reciprocate the sales agent's warmth. 2)Scarcity - Perceived scarcity generates demand. For example, saying offers are available for a "limited time only" encourages sales. Nitin mentioned how prospective buyers are give appointments to visit a property for buying at the same time. This creates intense competition due to the idea of scarcity. 3)Likeability- We tend to be attracted to a brand based on the celebrity endorsing it. Nitin quoted an example of how a celebrity posing as a doctor can bring more business for a medicine company than an actual doctor promoting it. We had a long discussion on how this trend is getting changed in recent times. Nowadays people look out for actual,real people endorsing stuff so that they find something that they can related to. 4)Social Proof- This is what marketers use when claiming a product is being used by 99.x % of customers. A product automatically become attractive if it is being used by so many consumers and brings the notion of FOMO(fear of missing out) 5)Community factor- We tend to like a person/product that gives us the feeling of familiarity and community. Nitin presented the example of how Japan failed to harm some Jews who presented themselves as fellow Asians to Japan All in all a great session with some engaging discussions and examples.

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