• 31 Books

• 7 Life on other planets
• 4 Dent, Arthur (Fictitious character)
• 3 Human-alien encounters
• 3 Prefect, Ford
• 3 Space colonies
• 2 Imaginary wars and battles
• 2 Science fiction
• 2 Spock, Mr. (Fictitious character)
• 2 Star Trek fiction
• 1 Actors
• 1 Alien artifacts
• 1 American fiction
• 1 Antiquities
• 1 Astronauts
• 1 Australian fiction
• 1 Bands (Music)
• 1 Boys
• 1 Cloning
• 1 Competitions
• 1 English fiction
• 1 Exploration
• 1 Habitable planets
• 1 Human-animal relationships
• 1 Humorous stories, English

• 4 Adams, Douglas, 1952-2001
• 3 Benford, Gregory, 1941-
• 2 Divya, S. B.
• 2 Lafferty, Mur
• 2 Scalzi, John, 1969-
• 1 Anderson, Poul, 1926-2001
• 1 Bear, Elizabeth
• 1 Broaddus, Maurice
• 1 Broderick, Damien
• 1 Buckell, Tobias S.
• 1 Bujold, Lois McMaster
• 1 Card, Orson Scott
• 1 Cato, Beth
• 1 Colfer, Eoin
• 1 Connolly, Tina
• 1 Connors, Scott
• 1 Daniel, Tony
• 1 Dick, Philip K
• 1 Dietz, William C
• 1 Doctorow, Cory
• 1 Gailey, Sarah
• 1 Gunn, James E., 1923-2020
• 1 Hamilton, Peter F
• 1 Hilger, Ronald
• 1 Hurley, Kameron

• 31 English

• 3 Mars (Planet)
• 1 Outer space
• 1 Tel Aviv (Israel)

• 3 Fantasy fiction
• 3 Humorous fiction
• 3 Novels
• 3 Space operas (Fiction)
• 2 Short stories
• 2 short stories
• 1 Action and adventure fiction
• 1 Humorous stories, English
• 1 Juvenile literature
• 1 Lesbian fiction
• 1 Mystery fiction
• 1 Science fiction, English
• 1 Time-travel fiction
• 1 novels

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