Carol J. Loomis first wrote about Warren Buffett for Fortune in 1966, when he was a little-known hedge fund manager in Omaha. They became close personal friends over the following decades, giving Loomis unique access and insight into the mind of the worlds greatest investor. For the last thirty-five years she has also been the pro-bono editor of his famous annual letter to the shareholders of Berkshire-Hathaway.