A school for roulette players founded in Paris - learning how to win in the casino . Professor Mariano Castells has founded a novel school in Paris where he teaches would - be speculators how to be successful at the roulette tables . The students at the school receive instruction in a special system which is said to be as nearly infallible as possible . Photo shows ; Professor Mariano Castells giving a lesson at his school for roulette players in Paris . 7 December 1933