Books in Science Fiction (sorted alphabetically)
- Stopover Planet Robert E. Gilbert
- Storm Over Warlock Andre Norton
- Stowaway Alvin Heiner
- Strange Alliance Bryce Walton
- Street That Wasn't There Clifford D. Simak and Carl Jacobi
- Stuff Henry Slesar
- Stutterer Reuben Merliss
- Subject to Change Ron Goulart
- Subspace Survivors E. E. Smith
- Subversive Mack Reynolds
- Success Machine Henry Slesar
- Success Story Earl Goodale
- Such Blooming Talk L. Major Reynolds
- Suite Mentale Randall Garrett
- Summer Snow Storm Stephen Marlowe
- Summit Mack Reynolds
- Sun King Gaston Derreaux
- Super Man and the Bug Out Cory Doctorow
- Supermind Randall Garrett and Laurence M. Janifer
- Survival Kit Frederik Pohl
- Survival Tactics Al Sevcik
- Survival Type Jesse F. Bone
- Sweeper of Loray Robert Sheckley
- Sweet Their Blood and Sticky Albert Teichner
- Sweet Tooth Robert F. Young