Success in poker is part luck, part math, and part subterfuge. While the math of poker has been refined over the past decades, the ability to read other players and keep one's own "tells" in check has been mostly learned through trial and error and can take a lifetime to master. But now, by using ex-FBI special agent Joe Navarro's insights into body language, illustrated with World Series of Poker champion Phil Hellmuth's in-game examples, players will be able to decode and interpret other players' nonverbal communication while concealing their own-becoming human lie detectors and the most feared players at the table.