For 25 years, Joe Navarro served as an FBI agent specializing in counterintelligence and behavioral assessment.  Since retiring, he has authored 14 books in 29 languages dealing with human behavior and body language.  

His book, What Every BODY is Saying, remains, after a decade, the #1 selling body-language book in the world while Louder Than Words, based on his lectures at the Harvard Business School, was hailed by The Wall Street Journal as “One of the six best business books to read for your career.” 

Training: Putting Nonverbal Communication to Work