Published 2015 by Aurum Press, London
Britain’s X-traordinary Files
London: Bloomsbury, 2014
Scared to Death and other ghost stories from Victorian Sheffield
Sheffield: ACM Retro, 2013
The UFO Files: The Inside Story of Real-Life Sightings
London: Bloomsbury: 2nd edition, 2012
Flying Saucerers: A social history of UFOlogy (with Andy Roberts). Loughborough: Heart of Albion Press, 2007
The Angel of Mons: Phantom Soldiers and Ghostly Guardians.
London: John Wiley, 2004
Out of the Shadows: UFOs, The Establishment and the Official Cover up
(with Andy Roberts)London: Piatkus, 2002
Supernatural Peak District
London: Robert Hale, 2000
The UFOs that Never Were (with J. Randles and A. Roberts)
London: Allison & Busby, 1999
Twilight of the Celtic Gods (with A. Roberts)
London: Cassell/Blandford Press, 1986.
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)
London: Robert Hale, 1990