Ken Jennings was an anonymous Salt Lake City software engineer in 2004 when he unexpectedly became a TV celebrity after his record-breaking seventy-four-game, $2.5 million winning streak on the syndicated quiz show Jeopardy! Today, he is the author of thirteen books, including the New York Times bestsellers Brainiac, Maphead, and Because I Said So!, as well as the Junior Genius Guides for children. In 2020, he was named Jeopardy!’s “Greatest of All Time” after winning a primetime tournament on ABC, and in 2022, succeeded Alex Trebek as a permanent host of the show. He grew up in Seoul, South Korea, but for the last fifteen years has lived in his native Seattle with his family and dogs.