In the 1990s Clark authored the UFO Book, an abridged version of The UFO Encyclopedia, which won the 1998 Benjamin Franklin Award in the Science/Environment category sponsored by the Independent Book Publishers Association.

It is the conclusion of many researchersJerome Clark, 'The UFO Book: Encyclopedia of the Extraterrestrial', 1998; Detroit: Visible Ink Press, ISBN 1-57859-029-9 that the Robertson Panel was recommending controlling public opinion through a program of official propaganda and spying.

"The Lubbock Lights", from The UFO Book.

The UFO Book: Encyclopedia of the Extraterrestrial, Jerome Clark, author.

Clark, Jerome, The UFO Book: Encyclopedia of the Extraterrestrial (Visible Ink, 1998).

(UFO Books Ltd)

The UFO Book: Encyclopedia of the Extraterrestrial.

The U.S. Air Force formally listed the Arnold case as a mirage; this is one of many explanations that have been disputed by critics, and researchers Jerome Clark, author of The UFO Book (1998) and Ronald Story, editor of The Encyclopedia of UFOs (1980).

The UFO Book: Encyclopedia Of The Extraterrestrial; Jerome Clark, author.