Every great player knows that success in poker is part luck, part math, and part subterfuge. While the math of poker has been refined over the past 20 years, the ability to read other players and keep your own "tells" in check has mostly been learned by trial and error.

But now, Joe Navarro, a former FBI counterintelligence officer specializing in nonverbal communication and behavior analysis - or, to put it simply, a man who can tell when someone's lying - offers foolproof techniques, illustrated with amazing examples from poker pro Phil Hellmuth, that will help you decode and interpret you opponents body language and other silent tip-offs while concealing your own. You'll become a human lie detector, ready to call every bluff - and the most feared player in the room.

Joe Navarro worked with the FBI, both as an agent and supervisor in the area of counterintelligence and counterterrorism, for 25 years. He is presently an adjunct faculty member at the FBI's Counterintelligence Division. In addition to his law enforcement work, Joe conducts poker seminars and offers personal consulting services to poker players.