Writing Warren Buffett's biography was really quite a journey. My agent later told me that he gave it 1,000 to 1 odds that I would pull this off. Writing narrative non-fiction requires a very different skill than writing technical research, which is what I had done before. I had to learn how to:
- Research a biography.
- Do interviews.
- Become a journalist.
- Write a story -- because it’s not a book about investing at all. It’s really a saga about a family that was obsessed with money, that had a child prodigy who grew up into a man who thought life revolved around money, and, through a series of tragedies and misadventures, learned that life is really about love. I had to learn how to tell that story.
- I interviewed 250 people.
- I spent a couple of thousand hours with Warren, traveling to Omaha and just sitting in his office as a fly on the wall and talking to him.
- I have about 300 hours of that time recorded in digital interviews. The rest was just me hanging around, watching him. Some of it never got recorded.

