David Clark holds degrees in both finance and law, and in the late seventies was the founding member of the original Buffettologists – a small group of early Berkshire shareholders who studied the investment methods of Warren Buffett. He is now recognized as one of the world's leading authorities on the subject and has written extensively on it. He lives in Warren Buffett's hometown, Omaha Nebraska, and is the Managing Director of a private partnership that invests primarily in arbitrage situations.