- This Woven Kingdom
- Thomas Ant e l'Insecta Segreta
- Thomas Templeton and the Year of the Vivificus
- Thomas the T-Rex Learns Patience
- Thor
- Thor's Serpents
- Thorfinn and the Awful Invasion
- Thorfinn and the Disgusting Feast
- Thorfinn and the Dreadful Dragon
- Thorfinn and the Gruesome Games
- Thorfinn and the Putrid Potion
- Thorfinn and the Rotten Scots
- Thorfinn the Nicest Viking series Books 1 to 3
- Thorin pöly
- Thoron the Living Storm
- Three Bears in a Boat
- Three Evil Wishes
- The Three Hares: The Gold Monkey Key
- Three Journeys of the Scary Kind
- The Three Little Astronauts
- Three Little Horses
- Three Little Monkeys
- Three Little Monkeys at Christmas
- Three Little Monkeys Ride Again
- The Three Madelines
- Three Mischievous Dogs
- The Three Musketeers: Illustrated Young Readers' Edition
- The Three Siblings and the Weird Hill
- Three Tales of My Father's Dragon
- Three's a Crowd!
- Three, Two, One. Geronimo!
- Three-Ring Terror
- Threescoop's Snowy Adventure
- Thrill on the Hill
- Thrive
- The Throne of Fire: The Graphic Novel (The Kane Chronicles Book 2)
- Through the Portal
- Throwback
- Throwback: Out of Time
- Throwback: The Chaos Loop
- Thru Hiker
- Thunder Dog: Book One
- Thunder from the Sea
- Thunder II: Footprints in the Sand
- Thunder III: Hope Haven
- Thunder Raker
- THUNDER VALLEY
- The Thunderbolt Pony
- Thursdays with the Crown
- Thursday’s Child
- Thuvia, vierge de Mars (La princesse de mars)
- Ti Louis à la cueillette des goyaviers
- Tia The Tulip Fairy
- Tiana the Toy Fairy
- Tiana the Toy Fairy: The Land of Sweets
- Tibby and Duckie
- Tibby and Scaredy Snout
- Tibby, the Tiger Bunny
- Tiberius Goes On Holiday
- Tiberius goes to London
- Tick, Tock, and Tink's Time Machine
- Ticky-Ticky's Quest
- The Tide Knot
- Tiera
- Tierra de Maravillas
- Tiger Heart
- Tiger in Afrika Abenteuer im Frühling
- Tiger in Afrika - Abenteuer im Frühling
- Tiger in Trouble
- Tiger Tells All
- Tiger, Tiger (Factor 4)
- Tikitonga
- Tikron the Jungle Master
- Tilda and the Bones of Kradlock
- Tilly and the Blue Pearl
- Tilly and the Time Machine
- Tim Blues & The Shard Supernova
- Tim-Tam & the Space Pirates: Race to the Phantom Moon
- Time Benders
- TIME CATS
- Time in Her Hands: Part 1 of the Carrie Cartwright Series
- Time Sight
- Time Slide
- Time to Sleep, Little One
- Time Trap
- Time Trapped
- Time Traveling Dave
- Time Warp Trio: Lewis and Clark...and Jodie, Freddi, and Samantha
- Time Warp Trio: Wushu Were Here
- The Time Warp Wonder
- The Timekeeper's Moon
- Timesnatch
- Timothy Adventures: The Remarkable Red Rock
- The Tin Man
- The Tin Snail
- Tina u Istri