Reviews & Testimonials
Below, we showcase the authentic experiences and feedback from our valued customers. We believe that hearing directly from those who have benefited from our products or services can provide valuable insights and help you make informed decisions.
Select filter:
-
-
-
-
-
- 4.6/5
based on 23,949 reviews
![Warren Buffett](https://cialdini.com/hubfs/Website%20Upgrade/Headshots%20Testimonials/Business%20Leaders%20and%20Scientists/Warren%20Buffett.png)
Warren Buffett
CEO Berkshire Hathaway
![Berkshire Hathaway logo white](https://cialdini.com/hubfs/Website%20Upgrade/Company%20logos/White%20logos%20for%20testimonials/Berkshire%20Hathaway%20logo%20white.png)
“‘Influence’ is one of the best business books of all time.”
![Gwyneth Paltrow](https://cialdini.com/hubfs/Website%20Upgrade/Headshots%20Testimonials/Business%20Leaders%20and%20Scientists/Gwyneth%20Paltrow.png)
Gwyneth Paltrow
Oscar-Winning Actress, CEO goop
![Goop logo white](https://cialdini.com/hubfs/Website%20Upgrade/Company%20logos/White%20logos%20for%20testimonials/Goop%20logo%20white.png)
“This ‘Influence’ is a classic: it delves into how and why influence works and the specific dynamics at play when leading a company.”
![Alex-Hormozi.](https://cialdini.com/hubfs/Website%20Upgrade/Headshots%20Testimonials/Business%20Leaders%20and%20Scientists/Alex-Hormozi..jpg)
Alex Hormozi
Entrepreneur, investor
![Acquisition.com logo white](https://cialdini.com/hubfs/Website%20Upgrade/Company%20logos/White%20logos%20for%20testimonials/Acquisition.com%20logo%20white.png)
“Influence’ is a must-read for entrepreneurship, sales, and marketing.”
![Tobias Lutke](https://cialdini.com/hubfs/Website%20Upgrade/Headshots%20Testimonials/Business%20Leaders%20and%20Scientists/Tobias%20Lutke.jpg)
Tobias Lutke
Founder Shopify
![Shopify logo white](https://cialdini.com/hubfs/Website%20Upgrade/Company%20logos/White%20logos%20for%20testimonials/Shopify%20logo%20white.png)
“‘Influence’ is a book that made me a billionaire.”
![Tamsin Henderson](https://cialdini.com/hubfs/Website%20Upgrade/Headshots%20Testimonials/Business%20Leaders%20and%20Scientists/Tamsin%20Henderson.jpg)
Tamsin Henderson
Owner Copy Kooks
![Copy cooks logo white](https://cialdini.com/hubfs/Website%20Upgrade/Company%20logos/White%20logos%20for%20testimonials/Copy%20cooks%20logo%20white.png)
“I recommend inhaling anything you can get your hands on by Robert Cialdini — books, podcasts, videos. He is the undisputed master of all things persuasion.”
![guy_kawasaki old](https://cialdini.com/hubfs/guy_kawasaki%20old.png)
Guy Kawasaki
Silicon Valley Venture Capitalist
![Canva logo white](https://cialdini.com/hubfs/Website%20Upgrade/Company%20logos/White%20logos%20for%20testimonials/Canva%20logo%20white.png)
“Cialdini is the ‘Godfather of Influence.’ His book is the guiding light for how I conduct business – and in many ways how I live my life.”
![Russell-Brunson](https://cialdini.com/hubfs/Website%20Upgrade/Headshots%20Testimonials/Business%20Leaders%20and%20Scientists/Russell-Brunson.jpg)
Russel Brunson
Bestselling Author & Founder of ClickFunnels
![Clickfunnels logo white](https://cialdini.com/hubfs/Website%20Upgrade/Company%20logos/White%20logos%20for%20testimonials/Clickfunnels%20logo%20white.png)
"I've been a fan of Dr. Cialdini for 2 decades! His work has had an insane impact on my business and life - thank you!"
![Rory Sutherland](https://cialdini.com/hubfs/Website%20Upgrade/Headshots%20Testimonials/Business%20Leaders%20and%20Scientists/Rory%20Sutherland.png)
Rory Sutherland
Vice Chairman Ogilvy & Mather
![Ogilvy logo white](https://cialdini.com/hubfs/Website%20Upgrade/Company%20logos/White%20logos%20for%20testimonials/Ogilvy%20logo%20white.png)
“His work in codifying human behavior, has been priceless.”
![Richard Thaler](https://cialdini.com/hubfs/Website%20Upgrade/Headshots%20Testimonials/Business%20Leaders%20and%20Scientists/Richard%20Thaler.jpeg)
Richard Thaler
Professor of Behavioral Science & Economics Nobel Prize Winner
![Chicago University logo white](https://cialdini.com/hubfs/Website%20Upgrade/Company%20logos/White%20logos%20for%20testimonials/Chicago%20University%20logo%20white.png)
“If the President had to have one advisor with him at all times, my nomination would be Bob Cialdini, the world’s most practical social psychologist, and the master of ‘Influence’.”
![tim_ferriss](https://cialdini.com/hubfs/tim_ferriss.jpg)
Tim Ferriss
Lifestyle Expert and Bestselling Author
![4h work week](https://cialdini.com/hubfs/4h%20work%20week.png)
“I would really encourage people to study books like ‘Influence,’ so you get a fundamental set of principles that you can apply online, offline, to different tools, to direct copy, to complex sales in big organizations…”
![gerry allen 2](https://cialdini.com/hubfs/gerry%20allen%202.png)
Gerry Allen
Former Vice President IBM
![ibm-1](https://cialdini.com/hubfs/ibm-1.png)
“I have always been impressed with his integrity, his honesty, his high ethics standards, the way that he conducts his life and his business.”
![joe-polish](https://cialdini.com/hubfs/joe-polish.png)
Joe Polish
Founder Genius Network
![genius network](https://cialdini.com/hubfs/genius%20network.png)
The new ‘Influence’ is nothing short of a masterpiece. The writing is both timeless and worth reading immediately.
![charlie_munger](https://cialdini.com/hubfs/charlie_munger.jpeg)
Charlie Munger
Vice Chairman Berkshire Hathaway
![Berkshire Hathaway logo white](https://cialdini.com/hubfs/Website%20Upgrade/Company%20logos/White%20logos%20for%20testimonials/Berkshire%20Hathaway%20logo%20white.png)
“Robert Cialdini has had a greater impact on my thinking than any other scientist.”
![Chris Voss](https://cialdini.com/hubfs/Chris%20Voss.jpeg)
Chris Voss
Wall Street Journal Best-Selling Author
![black swan](https://cialdini.com/hubfs/black%20swan.png)
“Anyone who wants their abilities in communication or negotiation to be at their highest level has to read Robert Cialdini's book. Your knowledge base is simply incomplete without it.”
![Constance Dierickx 2](https://cialdini.com/hubfs/Constance%20Dierickx%202.jpeg)
Constance Dierickx
The Decision Doctor
![CD group](https://cialdini.com/hubfs/CD%20group.png)
“Cialdini is the expert on influence. His research reveals principles that any leader, or any person for that matter, can apply.”
![Naval Ravikant](https://cialdini.com/hubfs/Naval%20Ravikant.png)
Naval Ravikant
Entrepreneur and Angel Investor
![angel list](https://cialdini.com/hubfs/angel%20list.png)
“‘Influence’: classic, classic book. Everybody should read it, memorize it, and understand that the way that people influence other people is consistency, liking, authority, social proof, scarcity, and reciprocity.”
![Annie Duke-1](https://cialdini.com/hubfs/Annie%20Duke-1.jpg)
Annie Duke
Professional Poker Champion
![Annie Duke](https://cialdini.com/hubfs/Annie%20Duke.png)
“Robert Cialdini is a pioneer in translating complex scientific work into a fun and digestible form that the rest of us can understand and benefit from.”
![Barry Ritholtz-1](https://cialdini.com/hubfs/Barry%20Ritholtz-1.jpg)
Barry Ritholtz
Chairman and CIO Ritholtz Wealth Management
![ritzholtz](https://cialdini.com/hubfs/ritzholtz.png)
“Dr. Robert Cialdini has long been recognized as a leading voice in the fields of persuasion, compliance, and negotiation.”
![Daniel Kahneman](https://cialdini.com/hubfs/Daniel%20Kahneman.jpg)
Daniel Kahneman
![princeton](https://cialdini.com/hubfs/princeton.png)
“Bob Cialdini is a great observer, and keen observations have been the key to some of his great work... It’s really inspiring to look at his work.”
![Betsy Levy Paluck](https://cialdini.com/hubfs/Betsy%20Levy%20Paluck.jpeg)
Betsy Levy Paluck
![princeton](https://cialdini.com/hubfs/princeton.png)
“’Influence’ will continue to clarify and inspire the art and science of persuasion for years to come.”
![Angela Duckworth](https://cialdini.com/hubfs/Angela%20Duckworth.jpeg)
Angela Duckworth
![penn-1](https://cialdini.com/hubfs/penn-1.png)
“Not only is he a world-class psychologist, he is a world-class human being.”
![Adam Grant](https://cialdini.com/hubfs/Adam%20Grant.jpg)
Adam Grant
![penn-1](https://cialdini.com/hubfs/penn-1.png)
“Without Bob Cialdini, I would not be a psychologist.”
![Daniel Shapiro](https://cialdini.com/hubfs/Daniel%20Shapiro.jpg)
Daniel Shapiro
![harvard-3](https://cialdini.com/hubfs/harvard-3.png)
“Whether you seek to boost sales, strike a better deal, or improve your relationships, ‘Influence’ offers scientifically tested principles that can change your life.”
![Dorie Clark](https://cialdini.com/hubfs/Dorie%20Clark.jpeg)
Dorie Clark
![Duke](https://cialdini.com/hubfs/Duke.png)
“‘Influence’ is a modern business classic that has profoundly shaped the fields of marketing and psychology.”
![Noah Goldstein](https://cialdini.com/hubfs/Noah%20Goldstein.jpg)
Noah Goldstein
![ucla](https://cialdini.com/hubfs/ucla.png)
“When people find out that Bob Cialdini was my mentor, the most common response is: ‘Bob Cialdini is my hero.’ He is everything we hope to be as academics and frankly as people.”
![Katherine Milkman](https://cialdini.com/hubfs/Katherine%20Milkman.jpg)
Katherine Milkman
![penn-1](https://cialdini.com/hubfs/penn-1.png)
“Bob Cialdini is unquestionably one of the greatest social psychologists of the last century.”
![American Psychological Association](https://cialdini.com/hubfs/American%20Psychological%20Association.png)
American Psychological Association
![penn-1](https://cialdini.com/hubfs/penn-1.png)
“Robert Cialdini has been the go-to psychology expert in marketing since his best-selling book ‘Influence’.”
![Peter Killeen](https://cialdini.com/hubfs/Peter%20Killeen.jpg)
Peter Killeen
![asu](https://cialdini.com/hubfs/asu.png)
“Bob has always imbued his work with ethical principles. He’s always sought and found good reasons – economic reasons – for being ethical.”
![Mark Schaller](https://cialdini.com/hubfs/Mark%20Schaller.jpg)
Mark Schaller
![british columbia](https://cialdini.com/hubfs/british%20columbia.png)
“Bod has always had a real skill and a talent for connecting the science to stuff that real people – even if they’re not academics – actually care about.”
![Richard E- Petty-1](https://cialdini.com/hubfs/Richard%20E-%20Petty-1.jpeg)
Richard E. Petty
![ohio state](https://cialdini.com/hubfs/ohio%20state.png)
“Bob’s work represents the very best of social psychology, combining both basic theory and conceptual along with an important application to the real world.”
![Todd Rogers](https://cialdini.com/hubfs/Todd%20Rogers.jpg)
Todd Rogers
![harvard-3](https://cialdini.com/hubfs/harvard-3.png)
“Future generations of psychologists will benefit and take inspiration from the approach that Bob uses to develop research ideas and ultimately study them.”
![Nancy Gonzales](https://cialdini.com/hubfs/Nancy%20Gonzales.jpg)
Nancy Gonzales
![asu](https://cialdini.com/hubfs/asu.png)
“Distinguished scholar, tremendous mentor, researcher, educator… Bob has truly been a scientist to emulate in so many ways.”
![](https://cialdini.com/hubfs/blank-profile-picture-g49517687f_640-1.png)