Books about Science fiction (sorted alphabetically)
- Cave-Dwellers of Saturn John Wiggin
- cave girl Edgar Rice Burroughs
- Cavern of the Shining Ones Hal K. Wells
- Caxton's Book: A Collection of Essays, Poems, Tales, and Sketches. W. H. Rhodes
- Ĉe la koro de la tero (Esperanto) Edgar Rice Burroughs
- Celebrity James McKimmey
- celestial blueprint Philip José Farmer
- Celestial Hammerlock Donald Colvin
- Centaurians: a novel Biagi
- Centauri Vengeance Stephen Marlowe
- Cerebrum Albert Teichner
- Certainty of a Future Life in Mars L. P. Gratacap
- Chain of Command Stephen Arr
- Chain Reaction Boyd Ellanby
- Chamber of Life Green Peyton
- Chameleon Man William P. McGivern
- Chapter Ends Poul Anderson
- Charity Case Jim Harmon
- Charley de Milo Laurence M. Janifer
- Chasers Daniel F. Galouye
- Chasm Bryce Walton
- Check and Checkmate Walter M. Miller
- Chemically Pure Warriors Allen Kim Lang
- Chessmen of Mars Edgar Rice Burroughs
- Chessmen of Mars Edgar Rice Burroughs