UFO (TV series)
UFO is a 1970 British science fiction television series about an alien invasion of Earth. It was created by Gerry Anderson and Sylvia Anderson with Reg Hill, and produced by the Andersons and Lew Grade's Century 21 Productions for Grade's ITC Entertainment company.
The UFO Files: The Inside Story of Real-Life Sightings
The UFO Files: The Inside Story of Real-Life Sightings, published by The National Archives in 2009, is an official history of British UFO reports. 
The author, David Clarke, is a senior lecturer in journalism at Sheffield Hallam University.