Earl Nightingale & Napoleon Hill are famous for studying the most successful businessmen in America of their eras. From this, they wrote many publications on how these people had achieved such great success.
‘Kevin Trudeau was part of numerous secret societies from a young age. This helped him learn unique techniques for success and the law of attraction. His teachings include his detailed breakdown of how the law of attraction works based on universal law and brain waves, as well as techniques to success that is kept from the mainstream.’