When Ken Jennings stepped onto the stage of Jeopardy! back in 2004, he was a humble software engineer from Salt Lake City. 74 wins later, he stepped off that stage as the winningest contestant in game show history. Since then, Jennings has continued to indulge his interest in esoteric knowledge of all kinds as an author and columnist. One of his books, Maphead, digs into the world of maps and map enthusiasts, looking at the past, present, and future of maps as a fundamental part of human experience. (uxmag.com)