Spy the Lie Former CIA Officers Teach You How to Detect Deception Philip Houston, Michael Floyd, and Susan Carnicero

Our guide to Spy the Lie covers the authors’ guidance for applying their techniques in your life. We'll explain how to ask effective questions (and avoid the wrong questions), what responses signal deception, and how to verify that a suspicious response is truly deceitful—not just a fluke. Our commentary extends the authors’ ideas with supporting research, offers alternative explanations for suspicious behavior, and explains how quirks of human behavior affect responses.