Jonathan Long

“Years ago he discovered that the demand for investment-grade baseball cards would likely explode someday. This was long before the market reflected this trend. He invested heavily when the market was “asleep,” in his words. And he sold out all his holdings—including all his Mickey Mantle rookie cards—at the top of the market. Another acquaintance, a manager of a department store, always studied trade journals to learn how to make his store more productive. Later he leveraged his reading habits into investing in growth stocks in the retailing area.”
― Thomas J. Stanley, The Millionaire Next Door: The Surprising Secrets of America's Wealthy