Forrest Mars was one of the most private and successful entrepreneurs in America. An autocrat, with unconventional management strategies, he built one of the world's most innovative companies - a $10 billion a year empire, shrouded in secrecy. The day after he died of natural causes a Mars spokesperson refused even to admit that the founder had worked for the firm. Milton Hershey was a dreamer who wanted to create not just a company but an industrial paradise. After making an immense fortune his company is now controlled by a charitable trust whose profits fund the wealthiest orphanage in the world.