William(Billy) Eisenberg of Boca Raton, Florida. Bridge professional, teacher, coach and Vugraph commentator, former professional backgammon player.

Won World Backgammon Championship 1974, is one of the official Vugraph commentators for the WBF; was coach to the first ACBL Junior team to attend Junior Camp in Poland 1987; has coached and been teacher to many national teams around the world including Israel, Panama, Venezuela and the Netherlands.