Robin Dreeke Books
Robin Dreeke is a former FBI Special Agent and head of the FBI’s Counterintelligence Behavioral Analysis Program. He is an expert in interpersonal communication, trust-building, and behavioral prediction, and has authored several books on human behavior and leadership.
Known for: Sizing People Up: A Former FBI Agent’s Guide to Reading People’s True Thoughts and Intentions, Sizing People Up: A Veteran FBI Agent’s User Manual for Behavior Prediction
Books by Robin Dreeke

Sizing People Up: A Former FBI Agent’s Guide to Reading People’s True Thoughts and Intentions
Written by former FBI agent Robin Dreeke with co-author Cameron Stauth, this book provides practical techniques for understanding and predicting human behavior. Drawing on Dreeke’s experience in count...

Sizing People Up: A Veteran FBI Agent’s User Manual for Behavior Prediction
Written by former FBI Special Agent Robin Dreeke, this book provides a practical framework for assessing trustworthiness and predicting human behavior. Drawing on decades of experience in counterintel...
Key Insights from Robin Dreeke
The Trust Equation
Trust is not magic, nor is it arbitrary—it’s measurable through behavior. Over time, I developed what I call the Trust Equation to guide my own assessments: Predictability plus Integrity plus Benevolence equals Trustworthiness. These three elements give us a roadmap for understanding who will honor ...
From Sizing People Up: A Former FBI Agent’s Guide to Reading People’s True Thoughts and Intentions
The Six Signs of Trust
Over years of interviewing, debriefing, and recruiting individuals whose motives I could rarely afford to misjudge, I distilled six signs that consistently indicated whether trust could be extended. They aren’t mystical indicators but behavioral consistencies visible in how people communicate, prior...
From Sizing People Up: A Former FBI Agent’s Guide to Reading People’s True Thoughts and Intentions
The Foundation of Behavior Prediction
At the heart of predicting anyone’s behavior lies a single concept: understanding motivation. People are not random. Every action they take, every opinion they hold, flows from what they want most in that moment. During my years in counterintelligence, I realized that when we misjudge someone, it’s ...
From Sizing People Up: A Veteran FBI Agent’s User Manual for Behavior Prediction
The Six Indicators Framework
Over time, I distilled the art of predicting people down to six indicators. Each reveals a core dimension of trustworthiness and human reliability. These indicators are not psychological tricks—they’re behavioral lenses that help you interpret patterns consistently. They are Priorities, Stability, F...
From Sizing People Up: A Veteran FBI Agent’s User Manual for Behavior Prediction
About Robin Dreeke
Robin Dreeke is a former FBI Special Agent and head of the FBI’s Counterintelligence Behavioral Analysis Program. He is an expert in interpersonal communication, trust-building, and behavioral prediction, and has authored several books on human behavior and leadership.
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Robin Dreeke is a former FBI Special Agent and head of the FBI’s Counterintelligence Behavioral Analysis Program. He is an expert in interpersonal communication, trust-building, and behavioral prediction, and has authored several books on human behavior and leadership.
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