John D Rockefeller was a controversial businessman whose business practices were often under scrutiny. He came from a rather unusual background, his mother was very religious and his father was a larger than life character who was a snake oil salesman and a bigamist. Despite the odds Rockefeller became the first billionaire and created a huge dynasty. Like most of us he had a good side and a bad side, he was philanthropic and founded a university but then we return to his dubious business affairs. We read about the bribing of political figures, industrial espionage and predatory pricing.