Doug Casey is an American writer, speculator, and the founder and chairman of Casey Research. He is known for his contrarian investment approach and his advocacy for anarcho-capitalism. Casey is the author of several best-selling books, including "Crisis Investing" and "Strategic Investing."

His 1979 book, "Crisis Investing," was a number one New York Times Non-Fiction Best Seller for 29 consecutive weeks in 1980 and was the best-selling financial book of that year, selling 438,640 copies.