- Storm RiderRhondi Vilott
- Stormin' SonicMarc Gascoigne, Jonathan Green
- StormslayerJonathan Green
- Story of Red Riding HoodKevin Scally
- Stowaway!: Adventures at SeaTracey West
- Stranded StarshipKevin Berry
- Stranded!Sara Compton
- Stranger Things: Heroes and MonstersRana Tahir
- Strike ForceSteve Barlow, Steve Skidmore
- Subterranea: Empire of WrathMark Lain
- Succubus FantasyAmanda Clover
- Sudden Death at the VicarageTerence Copley
- Sudden TurnShane Breaux
- Sugarcane IslandEdward Packard
- Sugarcane IslandEdward Packard
- Summer CampJudy Gitenstein
- Summer Freeze!Brandon Terrell
- Summer in the SunJan Gelman
- Summer LoveElizabeth Carroll
- Summer LoveJill Santopolo
- Sun, Sea and BoysCaroline B. Cooney
- Sunken TreasureEdward Packard
- Suntanned DaysCaroline B. Cooney
- Super Bowl SundayMitch Gelman
- Super Giant Monster Time!Jeff Burk
- Super Mario AdvanceCraig Wessel
- Super Sports SpectacularGeorge Ivanoff
- Super-Villain Smackdown!John Sazaklis
- SuperbikeEdward Packard
- SupercomputerEdward Packard
- Supergirl: The Girl of SteelAndrew Helfer
- SuperheroSteve Barlow, Steve Skidmore
- Superman Day DisasterSteve Korté
- Superman: Peace in the BalanceMichael Teitelbaum
- Superman: The Man of SteelAndrew Helfer
- SuperpoweredJames Schannep
- Supreme Ruler of Everything CoolerConnor Hoover
- Surf MonkeysJay Leibold
- Survival at SeaEdward Packard
- Survive The IslandRabea Hadi
- Survive the Sands of ArabiaRabea Hadi
- Survive!Helen Brooke
- Swamp of the ScorpionDave Morris
- Sword and Flame: The English Civil WarJon Sutherland, Simon Farrell
- Sword Daughter's QuestRhondi Vilott
- Sword of CaesarBruce Stevenson, Robin Stevenson
- Sword of the Bastard ElfHerman S. Skull
- Sword of the SamuraiJamie Thomson, Mark Smith
- Sword of the SamuraiMichael Reaves, Steve Perry
- Takama's TyrannyAlison Reynolds, Sean Willmore
- Take a Chance on LoveJan Gelman
- Take Me ThereP.F. Kozak
- Take Off!Mary Danby
- Talisman of DeathJamie Thomson, Mark Smith
- Talisman of ValdegardeMadeleine Simon
- Tangle in TijuanaLilla Zuckerman, Nora Zuckerman
- Target: EarthE.T. Randall
- Tarzan and the Tower of DiamondsRichard Reinsmith
- Tarzan and the Well of SlavesDouglas Niles
- Tattoo of DeathR.A. Montgomery