Book excerpt: Introduction by Nick Cohn. In this classic book, Jon Bradshaw follows six full-time gamblers who never lose, including three legendary poker players Johnny Moss, Pug Pearson and Titanic Thompson; tennis player Bobby Riggs; pool player Minnesota Fats and backgammon player Tim Holland. His evocation of ambience and his dramatic description of the games themselves are fascinating, but Bradshaw also deftly probes their minds and hearts as he attempts to define what makes some men winners and most men losers.