Books about Science fiction (sorted alphabetically)
- Clean Break Roger D. Aycock
- Climate—disordered Sam Merwin
- Clockwork Man E. V. Odle
- Code Three Rick Raphael
- codice di Perelà (Italian) Aldo Palazzeschi
- Coffin for Jacob Edward W. Ludwig
- Cogito, Ergo Sum John Foster West
- Cold Night for Crying Stephen Marlowe
- Collectivum Mike Lewis
- Collector's Item Evelyn E. Smith
- Collector's Item Robert F. Young
- Collision Orbit Clyde Beck
- Colonists Raymond F. Jones
- Colony of the Unfit Manfred A. Carter
- Color Blind Charles A. Stearns
- Colors of Space Marion Zimmer Bradley
- Colors of Space Marion Zimmer Bradley
- Colossus of Chaos Nelson S. Bond
- colour out of space H. P. Lovecraft
- Columbus of Space Garrett Putman Serviss
- Combat Mack Reynolds
- Combatman John Massie Davis
- Come Into My Brain! Robert Silverberg
- Come into my parlor Charles E. Fritch
- comet-drivers Edmond Hamilton