DAVID J. LIEBERMAN is an award-winning author and internationally recognized leader in the field of human behavior and interpersonal relationships. Techniques based on his seven books, which have been translated into twenty-one languages and include two New York Times bestsellers, are used by the FBI, the Department of the Navy, and Fortune 500 companies, as well as by governments, corporations, and mental health professionals in more than twenty-five countries. He has appeared as a guest expert on programs such as the Today show, Fox News, The Montel Williams Show, The O'Reilly Factor, and The View, and his work has been featured in publications around the world.

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