Marcus has confessed to cheating at roulette, blackjack,
craps and poker at casinos worldwide for twenty-five years.
In his first book "American Roulette (The Great Casino
Heist)" he describes his path to becoming a skilled cheater
and how he considers it an art.
He has made many television
appearances and is considered an authority on many aspects
of gambling, cheating, and casinos in general.