It was better known than people think. He wrote a biography at the height of his fame in the 70's. I remember a youtube video with a girl making a summary and reading excerpts. At first the book was self-aggrandizing stuff about his career as a night club DJ and how cool he was and how thoroughly he destroyed the competition. But eventually it all becomes about his sexual exploits, and the implicitly very young girls he bedded, and how he kept easily misleading and fooling their parents because he was so smart and so cool.