- Kater Konstantin
- Kater Linus
- Kater Stanislaus
- Kater un Stiekelswien
- Kateri O'Leary goes to Creativity Camp
- Katerina's Wish
- Kath the Giraffe
- Katharina Katzenkind
- Katharine Eats Her Lunch
- Kathe und Nikole - Zwei Königstöchter bei den Indianern
- Katherine's Story, 1848
- Kathleen's First Day of School
- Katho und Evi
- Kathryn the PE Fairy
- Kathusch
- Kathy and the Owl
- Kati Helps Avoid Hunger
- Kati i Amerika
- Kati i Italien
- Kati i Paris
- Kati Knack-die-Nuss
- Katie
- Katie & Kimble: A Ghost Story, Book 1
- Katie and Her Dinosaur
- Katie and Kramer Visit Grandma
- Katie and the Bathers
- Katie and the British Artists
- Katie and the Cosmic Pandas' Deep Sea Voyage
- Katie and the Cupcake Cure
- Katie and the Cupcake War
- Katie and the Dinosaurs
- Katie and the Impressionists
- Katie and the Missing Kitten
- Katie and the Mona Lisa
- Katie and the Puppy Next Door
- Katie and the Snow Babies
- Katie and the Spanish Princess
- Katie and the Starry Night
- Katie and the Sunflowers
- Katie and the Waterlily Pond
- Katie and Those Boys
- Katie Cupcakes and Wedding Bells
- Katie Friedman Gives Up Texting! (And Lives to Tell About It.)
- Katie Grace and the Me Firsties
- Katie Grace and the Sticky Fingers
- Katie Grace Makes a New Friend
- Katie Helps . . . a Lizard in a Blizzard!
- Katie Helps a Bear with Bad Hair
- Katie Helps....A Giraffe Scared of Heights!
- Katie In London
- Katie in Scotland
- Katie Just Desserts
- Katie Kay Plays Lady For a Day
- Katie Ledecky: Swimming for Gold
- Katie Loves the Kittens
- Katie Prettywhiskers to the Rescue
- Katie Sprinkled Secrets
- Katie Sprinkles & Surprises
- Katie Starting from Scratch
- Katie the Catsitter
- Katie the Catsitter Book 2: Best Friends for Never
- Katie the Christian Caterpillar
- Katie the Kitten
- Katie The Kitten Fairy
- Katie Tosses a Ringer
- Katie's Cough
- Katie's Leaves
- Katie's London Christmas
- Katie's Magic Teapot and the Cosmic Pandas
- Katie's Magic Teapot Omnibus Edition
- Katie's Nature Walk
- Katie's New Recipe
- Katie's Picture Show
- Katie, Batter Up!
- Katie’s Horn
- Katinka’s Tail
- Katitzi e il piccolo Swing
- Katitzi nella buca dei serpenti
- Katja, Katja
- Katrina Garden Spider and the World Wide Web
- Katt savna
- Katte - Lyt&læs
- Katte, Grøn Fagklub
- Katte-landet