David Campbell has worked as a freelance new media producer and content specialist for many years, including roles at IBM, the BBC, various internet consultancies and the civil service.

He has a broad range of interests in literature and history, including the Middle Ages, the Napoleonic era, naval warfare and the genesis of the ‘military revolution'. He lives in Southsea, UK

Peter Sanderson is a comics guru in his own right, penning books, journal articles and criticism, teaching courses at New York University and producing documentaries on comics.

Peter joined the Marvel Comics staff as an assistant editor, later becoming Marvel's first archivist. He lives in New York City. Peter Sanderson is a comics historian and critic, who was Marvel's first official archivist.

He is the author of DK's best selling X-Men: The Ultimate Guide and co-author of DK's The Marvel Encyclopedia and Marvel Chronicle.

Peter was also one of the main writers of the first four versions of The Official Handbook of the Marvel Universe.