Bill has been a professor, teacher, corporate executive, college dean, and board and computer game designer. He designed role-play and board games as a partner in Mayfair Games. As a book packager, he created and edited over 400 books for major publishers. He has collaborated on the Mycroft Holmes, Ian Fleming, and Madame Vernet mysteries. His non-fiction books include Hunters and Shooters and The Teams, histories of the Navy SEALs, and Making Contact: a UFO handbook. Bill also has edited/ written over a dozen books about great mistakes in history including How To Lose a War, The 100 Mistakes that Changed History, and 101 Stumbles in the March of History.