- Snatched from Earth
- Snow
- Snow Biz
- Snowball: Chronicles of a Wererabbit
- Soar
- Soarta Dragonilor (Cartea 3 Din Inelul Vrăjitorului)
- Sofia and the Utopia Machine: A Novel
- Sohane l'insoumise
- Sohng
- Sojourn-Enclave
- Sojourn: The Beastlands
- Sojourn: The Wildlands
- Sol Invictus
- Solla-Rose ou L'Amnésie Salvatrice
- Sollevami
- Solo una brutta giornata
- Solomon's Bell
- Solori
- Solsticio de invierno (Gran Temblor 3)
- Some Penguin Problems
- Something Stinks!
- Sommeil glacé
- Somnium
- Somnium (2nd edition)
- Somnium - Eine Reise zum Mond
- Legados de Lorien 7 - Somos uno
- Song of Teeth: The Complete Book
- Songs from the Wood
- Sonntagskuchen mit Einstein
- Sons of Dragons: Book 2: Seeds of Peace
- Soon to Be a Major Motion Picture
- Sophia and the Dragon
- Sophie l’obscure
- Sorcerer's Ring Bundle (Books 1 and 2)
- Sorcerer's Ring Bundle (Books 1 and 2)
- Sorcerer's Ring Bundle (Books 10,11,12)
- Sorcerer's Ring Bundle (Books 2 and 3)
- Sorcerer’s Ring Bundle (Books 13, 14, 15)
- Sorceurian Dragonier Blackthorn
- Sordomudo
- Soul Keeper
- Soul Oath
- Soul Quest
- Soul Sibs
- Soulcore Volume 2: Mythology
- Soulless: The Story of Shayan (Prequel to The Soul Quest Trilogy)
- Soulsphere
- Sound of Silence
- Sous le charme de l'ange
- Sovereign Social Protocol: Life and Death in the Council
- Soy cero
- Legados de Lorien 1 - Soy el número Cuatro
- Sozinho
- SPACE ADVENTURES Boxed Set – 8 Novels in One Volume
- Space Cadet vs. Drama Queen
- Space Camp
- Space Commando
- Space Cowboy
- Space Demons
- Space Dogs
- Space Fights and Movie Nights: Book 1
- Space Lanes - A Collection of Star Runner Stories
- Space Nazis Vs. EXOTROOPERS!
- Space Pirates
- Space Sentinels I: The Benefax Alliance
- Space Warrior AD 60,400.111103
- Spaced Invaders
- Spaced Out
- Spacehoppers
- Spark
- Spark White Light
- Spawning Ground
- Specter
- Specter of the White Death (Salmon Run - Book 5)
- Spektrum 1 - Leoniderne
- Spektrum 2 - Geminiderne
- Spektrum 3 - Ursiderne
- Spektrum 4 - Kvadrantiderne
- Spider Wars
- Spider Woman and the Timeroc
- Spin Me Right Round
- Spirit
- Spirits of a Glitch
- Spirits of the Pirate House
- Spit, History, and Friendship
- Splash Down!
- Splintered
- Splinters
- Split Adam: Scion Saga Book 2
- Split Infinity
- Split the Sun
- Spoonfuls of Sugar
- Sprainter
- Springers
- Stacy Ireland
- Stade Terminal
- Stained
- Stan Lee's Alliances - A Trick of Light
- Stand-In
- Star Class Five