Bloomsbury: 2nd edition, 2012
Flying Saucerers: A social history of UFOlogy (with Andy Roberts). Loughborough: Heart of Albion Press, 2007
The UFOs that Never Were (with J. Randles and A. Roberts)
Twilight of the Celtic Gods (with A. Roberts)
Ghosts and Legends of the Peak District
Norwich: Jarrold, 1992, 128 pp. Third edition, 2000.
Phantoms of the Sky, UFOs: A Modern Myth? (with A. Roberts)