The title before the man: what a snowball means
Before telling the story of Warren Buffett's life, it's worth understanding the image that gives the book its name. He often compares his own path to a snowball that only really grows when two things come together: wet snow, which sticks, and a very long hill, so it can roll for a long time without stopping. Money that earns returns on what it already earned, the effect of compound interest, behaves the same way: at first the gain is small and unexciting, but after decades rolling downhill the result gets enormous.
This logic explains one of the author's choices: instead of starting on Wall Street, she starts with his childhood in Omaha, a small city in the American heartland. If the fortune were just market luck, it would be enough to tell about the best years in the stock market. Since the book's argument is that time weighs more than any isolated stroke of talent, it makes sense to devote a good part of the pages to a boy who, long before any valuable stock, was already thinking about how to put his own money to work early.
