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| Cialdini's 7 Points developed by Geoffrey W. Sutton, PhD |
Book Author: Robert B. Cialdini
Reviewed by
Geoffrey W. Sutton
Robert Cialdini’s Influence and the Psychology of Persuasion: A Book Review
Robert Cialdini is a psychologist who has spent decades studying what actually persuades people to act. When I worked with parents and teachers on child behavior, I often asked them to recall commercials they remembered. It was a fun exercise—and revealing. Most people admit that those ads pop back into mind later, especially when they’re standing in a store or making an impulse purchase.
Businesses know exactly what they’re doing: a 30‑ or 60‑second commercial can shape human behavior.
If you’re trying to sell a product, advocate for change, or gain supporters for a cause, Cialdini’s research-backed principles are worth knowing.
Below are the major principles from his book Influence.
1. The Contrast Principle
Our judgments are shaped by what comes first.
If you meet a rude person and then a neutral one, the second person seems kinder. Reverse the order—meet someone warm and welcoming first—and the neutral person may seem cold.
The first experience colors the second.
2. Reciprocation: The “Give and Take” Rule
Most of us feel a natural obligation to repay favors.
If someone buys you a drink, you feel you should return the gesture. Salespeople know this—offer a free book, a sample, or a meal, and people feel nudged toward buying something.
Churches invite newcomers to free meals or concerts. Politicians promise benefits if you support them. Reciprocity is powerful because it’s deeply wired into social life.
3. Commitment and Consistency
People want to appear consistent—even when they aren’t. Once we commit to something, we tend to stick with it.
This principle shows up everywhere:
Marriage and long-term relationships rely on commitment.
Nations expect treaty partners to honor agreements.
Companies offer free content in exchange for your email.
Amazon’s “wishlist” quietly builds loyalty.
Churches ask visitors to fill out a card, hoping the act of writing your name nudges you toward returning.
Nonprofits assume that a first donation signals commitment, so they follow up with more requests.
Voters often stick with a candidate they chose once, even if promises go unfulfilled—consistency feels comfortable.
4. Social Proof
Humans look to others when deciding what to do.
This is why bestseller lists work, why restaurants brag about being “most popular,” and why canned laughter makes TV audiences laugh more.
If others seem to approve, we tend to follow.
5. Liking
We are more easily persuaded by people we like. Cialdini identifies several factors that increase liking:
Physical attractiveness — We assume attractive people are also trustworthy or funny.
Similarity — Shared interests, backgrounds, or opinions build rapport.
Compliments — Praise feels good; we like those who give it.
Contact and cooperation — Working toward a common goal creates connection.
Association — Pairing a product with an appealing person or image boosts positive feelings.
Celebrities sell everything from shoes to insurance because liking spills over.
6. Authority
From childhood, we learn to respect authority figures—parents, teachers, leaders. That tendency carries into adulthood.
People in positions of authority can influence behavior on a massive scale. This is why American presidents are said to have a “bully pulpit”: their words can shape public opinion far beyond Washington.
7. Scarcity
When something seems scarce, we want it more.
In 2020, people rushed to buy toilet paper and hand sanitizer out of fear supplies would run out. Marketers use phrases like “limited time only,” “while supplies last,” or “first 100 customers.”
Scarcity also appears in religious contexts—warnings that time is running out can motivate people to act quickly.
Why Cialdini’s Work Matters
Cialdini’s Influence applies to nearly every domain where people try to persuade others.
If you’re easily swayed, his principles help you recognize what’s happening and resist unhealthy or unwise choices.
If you’re trying to encourage prosocial behavior, these insights can help you design messages that genuinely motivate people.
At the very least, understanding these triggers gives you a clearer picture of human behavior—and that’s always useful.
My chart of Cialdini's 7 points:
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| Persuasion Summary |
Post Author
Geoffrey W. Sutton, Professor Emeritus of Psychology at Evangel University, holds a master’s degree in counseling and a PhD in psychology from the University of Missouri-Columbia. His postdoctoral work encompassed education and supervision in forensic and neuropsychology and psychopharmacology. As a licensed psychologist, he conducted clinical and neuropsychological evaluations and provided psychotherapy for patients in various settings, including schools, hospitals, and private offices. During his tenure as a professor, Dr. Sutton taught courses on psychotherapy, assessment, and research. He has authored over one hundred publications, including books, book chapters, and articles in peer-reviewed psychology journals.
His website is https://suttong.com
Many publications are free to download at ResearchGate and Academia
Find chapters and essays on Substack. [ @GeoffreyWSutton ]
Of course, I would be delighted if you followed me and bought my books. But this review is free without obligation.
Video of Robert Cialdini talking about the Power of Persuasion
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