People like David Zeb Cook

David "Zeb" Cook is an American game designer, best known for his work at TSR, Inc., where he was employed for over fifteen years. Cook designed several games, wrote the Expert Set for Dungeons & Dragons, worked as lead designer of the second edition of Advanced Dungeons & Dragons, and invented the Planescape setting for AD&D. He is a member of the Origins Hall of Fame.

Cook was born in East Lansing, Michigan, and grew up on a farm in Iowa. His father was a farmer and college professor. In junior high school, Cook played wargames such as Avalon Hill's Blitzkrieg and Afrika Korps: "I was primarily a wargamer, but there wasn't any role-playing available then". In college, he was introduced to the Dungeons & Dragons role-playing game through the University of Iowa gaming club.