Jack Schafer Books
Jack Schafer, Ph. D.
Known for: The Like Switch: An Ex-FBI Agent's Guide to Influencing, Attracting, and Winning People Over
Books by Jack Schafer
The Like Switch: An Ex-FBI Agent's Guide to Influencing, Attracting, and Winning People Over
Written by former FBI agent Jack Schafer, this book provides practical psychological techniques for building rapport, trust, and influence in both personal and professional relationships. Drawing on behavioral science and real-world experience, Schafer explains how subtle cues, body language, and conversational strategies can help readers make others like them and foster genuine connections.
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The Friendship Formula: The Building Blocks of Rapport
Everything begins with understanding that friendship is not born out of magic chemistry but from measurable, observable factors. What I call the Friendship Formula consists of four variables—proximity, frequency, duration, and intensity. Together, they determine the speed and strength with which tru...
From The Like Switch: An Ex-FBI Agent's Guide to Influencing, Attracting, and Winning People Over
The Language of the Face and Body
Before we speak a word, our bodies have already spoken volumes. In FBI interviews, I learned that suspects revealed far more through micro-behaviors than in their verbal answers. The same is true in ordinary conversation: humans are hardwired to read nonverbal cues, and these signals often decide wh...
From The Like Switch: An Ex-FBI Agent's Guide to Influencing, Attracting, and Winning People Over
About Jack Schafer
Jack Schafer, Ph.D., is a former FBI Special Agent who worked as a behavioral analyst specializing in counterintelligence and deception detection. He is also a professor at Western Illinois University, teaching psychology and law enforcement communication.
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Jack Schafer, Ph. D.
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