Napoleon Hill wrote Outwitting the Devil back in 1938 and it was never published because of it's controversial tone. Chapter 7 is where he gets into his interview with the devil and I'll tell you now, there are things here that you will read that will cause light bulbs and fireworks to explode in the brain. If you're looking for real personal development, pick up this book and don't set it down until you're finished. Let it change your life.