Persuasion training, reviewed by the people who use it.

“'Influence' is one of the best business books of all time.”

Warren Buffett

CEO, Berkshire Hathaway

“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'.”

Richard Thaler

Nobel Laureate, Behavioral Economics

“It's been a very gratifying 10-year journey from reading, dissecting and applying 'Influence' to now being equipped to help those interested in 'upping their game' in being ethically persuasive. Thank you!”

“I recently attended Pat’s “How to Present More Professionally and Persuasively” session and found it incredibly helpful. Pat was enthusiastic, knowledgeable and genuinely passionate about sharing what he knows to help others improve. I came away with some great practical tips that I’ll use in my upcoming presentation, as well as when communicating with customers through quotes, emails and in person. Thanks, Pat!”

“Your 2-day Principles of Persuasion class was fantastic. Every moment was engaging and filled with gold. Someone else could make that material boring, but you made it compelling and enjoyable. I want to take it again because I know I only absorbed a fraction.”

“In August 2024, my colleague and friend Brock Jolly introduced me to Tommy. I was even late to his presentation, but the snippet I caught completely shifted my perspective. As someone juggling 2–3 coaches and stuck on a plateau, I was hesitant — another one wasn’t in the budget. But after a one-hour call where Tommy knew more about me than most, I was hooked. Doing the principles of persuasion gave me permission to launch my authority project. His group sessions feel deeply personalized, and I’ve grown so much. Earlier this week, he surprised me with a meaningful gift — my wife was blown away. One big takeaway? Connecting with clients beyond the numbers — their emotions, hopes, dreams, and goals.”

“Dr. Cialdini was the top speaker we’ve ever had… in or out of the organization. They loved him.”

Jennifer L. Botelho

KPMG

“Dil’s Cialdini-based program landed perfectly with our senior leaders. He translated behavioral science into practical tools we used in our senior management conversations. It was the most commercially courageous and useful leadership work we’ve commissioned.”

“A well-documented and thoughtful book on persuasion.”

“Robert Cialdini has had a greater impact on my thinking than any other scientist.”

Charlie Munger

Vice Chairman, Berkshire Hathaway

“His work in codifying human behavior has been priceless.”

Rory Sutherland

Vice Chairman, Ogilvy & Mather

“I must admit, I was skeptical at first, but I really began to understand how to use the principles on Day 2. After the session using the principles on our own influence situation, I was a believer and an influencer.”

Greg Eichhorn

Associate Vice President, Quinnipiac University