The Bridge World (TBW), the oldest continuously published magazine about contract bridge, was founded in 1929 by Ely Culbertson. It has since been regarded as the game's principal journal, publicizing technical advances in bidding and the play of the cards, discussions of ethical issues, bridge politics and leading personalities, and reports of major tournaments. Largely because of its emphasis on IMP and matchpoint play, TBW is of interest primarily to tournament players.