Best Non-Fiction Book
This Hugo Award was replaced by Best Related Book in 1999. The reason for the change was to include items such as comics that are fiction but are not books.
1998 The Encyclopedia of Fantasy edited by John Clute & John Grant
1997 Time & Chance by L. Sprague de Camp
1996 Science Fiction: The Illustrated Encyclopedia by John Clute
1995 I. Asimov: A Memoir by Isaac Asimov
1994 The Encyclopedia of Science Fiction by John Clute and Peter Nichols
1993 A Wealth of Fable: An informal history of science fiction in the 1950s by Harry Warner, Jr.
1992 The World of Charles Addams by Charles Addams
1991 How to Write Science Fiction and Fantasy by Orson Scott Card
1990 The World Beyond the Hill by Alexei & Cory Panshin
1989 The Motion of Light in Water by Samuel R. Delany
1988 Michael Whelan's Works of Wonder by Michael Whelan
1987 Trillion Year Spree by Brian Aldiss with David Wingrove
1986 Science Made Stupid by Tom Weller
1985 Wonder's Child: My Life in Science Fiction by Jack Williamson
1984 Encyclopedia of Science Fiction and Fantasy vol. III by Donald Tuck
1983 Isaac Asimov: The Foundations of Science Fiction by James E. Gunn
1982 Danse Macabre by Stephen King 1981 Cosmos by Carl Sagan
1980 The Science Fiction Encyclopedia (Peter Nicholls ed.)
"Hugo Award" is a service mark of the World Science Fiction Society, an unincorporated literary society.