Susan Constantine, MPsy, is a leading authority on body language, deception detection, and nonverbal communication. With over 20 years in human behavior sciences, she has appeared on more than 3,5000 television, print, and radio programs, including CNN, Fox News, and Good Morning America, offering expert analysis on political leaders, celebrities, and high-profile trials. Susan holds two Master’s degrees—a Dual Master’s in Psychology and a Master’s in Behavior, Credibility Analysis, and Communication—and a Bachelor’s degree in Communications. She is the author of How to Spot a Liar in 7 Seconds or Less, being released in February 2027.