- What Makes: A Reptile a Reptile
- What Makes: A Spider a Spider
- What Makes: An Amphibian an Amphibian
- What Makes: An Insect an Insect
- What Makes: An Invertebrate an Invertebrate
- What Makes: Four Book Collection 1
- What Makes: Four Book Collection 2
- What on Earth is that?
- What the Dog Knows
- What the Dog Knows Young Readers Edition
- What to Look For in Autumn
- What to Look For in Spring
- What to Look For in Summer
- What to Look For in Winter
- What Was the Age of the Dinosaurs?
- What Will Be Born?
- What would you like to wear?
- What Zola Did on Friday
- What Zola Did on Sunday
- What's happening?
- What's Missing: Faces
- What's New? The Zoo!: A Zippy History of Zoos
- What's out there?
- What's the Buzz?
- What's The Word, Birdy Bird?
- What's Under the Seas and Oceans?
- What's Up, Little Duck?
- What's with the Long Naps, Bears?
- What's Wrong? In Dinosaur Times
- What's Your Favorite Bug?
- When Butterflies Cross the Sky
- When Crabs Cross the Sand
- When I am Quiet on Oahu
- When I Get Big
- When I Get Big
- When Penguins Cross the Ice
- When We All Get Together
- When We Found Home
- When Whales Cross the Sea
- Where Birds and Monkeys Play
- Where Did All the Dinosaurs Go?
- Where Do Creatures Sleep at Night?
- WHERE Do Dinosaurs Get Their Names? Read-Along
- Where do insects live?
- Where Do They Go When It Rains?
- Where on Earth do Animals live?
- Where the Buffalo Roam
- Where the Weird Things Are
- Where would you like to sleep?
- Where's Fancy?
- Where's The Meerkat? On Holiday
- Where's the Penguin?
- While We Can't Hug
- White-Tailed Deer
- Who Am I?
- Who am I? Pets
- Who am I? Who are We? Short Riddles Posed by African Animals – Series 1
- Who am I? Who are We? Short Riddles Posed by African Animals – Series 2
- Who am I? Who are We? Short Riddles Posed by African Animals – Series 3
- Who am I? Who are We? Short Riddles Posed by African Animals – Series 4
- Who am I? Who are We? Short Riddles Posed by African Animals – Series 5
- Who Dug This Hole?
- Who Has These Feet?
- Who Has This Tail?
- Who Hatches the Egg? All About Eggs
- Who Is Jane Goodall?: A Who Was? Board Book
- Who is There? Noc Noc!
- Who Is Who At the Zoo!
- Who is Who Box Set
- Who is Who in the Sea!
- Who is Who on the Farm!
- Who Lives Here? Desert Animals
- Who Lives Here? Forest Animals
- Who Lives Here? Polar Animals
- Who Lives in a Tree?
- Who Lives in the Snow?
- Who Lives in the Snow?
- Who Was Here?
- Battle Royale: Five Books in One (Who Would Win? Collection)
- Who Would Win?: Extreme Animal Rumble
- Who Would Win?: Ultimate Showdown
- Who Would Win?: Walrus vs. Elephant Seal
- Who's at the Seashore?
- Whobert Whover, Owl Detective
- Whooping Cranes
- Whose Baby Butt?
- Whose Butt?
- Whose Eye Am I?
- Whose Footprint Is That?
- Whose Home Is This?
- Whose House Is That?
- Whose Poop Is That?
- Whose Track Is That?
- Whose Tracks Are These?
- Whose Tracks Are These?
- Why Do Birds Sing?
- Why Do Bush Babies Have Huge Eyes?
- Why Do Camels Have Long Eyelashes?
- Why Do Dogs Bark?
- Why Do Kittens Do That?
- Why Do Kittens Purr?
- Why Do Monkeys and Other Mammals Have Fur?
- Why Do Owls and Other Birds Have Feathers?
- Why Do Pigs Roll Around in the Mud?
- Why Do Rabbits Hop?
- Why Do Sea Turtles Look Like They Are Crying?
- Why Do Snails and Other Animals Have Shells?
- Why Do Snakes and Other Animals Have Scales?
- Why Do Snails and Other Animals Have Shells?
- Why Do Snakes and Other Animals Have Scales?
- Why Do Snakes Hiss?
- Why Doesn't My Cat Roar?
- Why Dogs Eat Poop
- Why Don't Sharks Have Bones?
- Why Frogs Are Wet
- Why I Love Australia
- Why Rabbits Eat Poop and Other Gross Facts about Pets
- Why, Fly Guy?: Answers to Kids' BIG Questions (Fly Guy Presents)
- Wibber Dibber Doo, I Love You
- Wie is Ek? Wie is Ons? Diere van Afrika Stel vir Jou Raaiseltjies - Reeks 1
- Wie is Ek? Wie is Ons? Diere van Afrika Stel vir Jou Raaiseltjies - Reeks 2
- Wie is Ek? Wie is Ons? Diere van Afrika Stel vir Jou Raaiseltjies - Reeks 3
- Wie is Ek? Wie is Ons? Diere van Afrika Stel vir Jou Raaiseltjies - Reeks 4
- Wie is Ek? Wie is Ons? Diere van Afrika Stel vir Jou Raaiseltjies - Reeks 5
- Wie plappert der Papagei?
- Wie trötet der Elefant?
- Wiggling Earthworms
- Wiggling Earthworms (Enhanced Edition)
- Wild About Bears
- Wild Animal Babies! (Wild Kratts)
- Wild Animals
- Wild Animals (American English audio)
- Wild Animals for Cute Kids
- Wild Babies
- Wild Cat, Pet Cat
- Wild Cities
- Wild City
- Wild Dogs and Canines! (Wild Kratts)
- Wild Feelings
- Wild Horse Annie
- Wild Horses
- Wild in Africa! (Wild Kratts)
- Wild In The City
- Wild Insects and Spiders! (Wild Kratts)
- Wild Predators (Wild Kratts)
- Wild Reptiles: Snakes, Crocodiles, Lizards, and Turtles (Wild Kratts)
- Wild Sea Creatures: Sharks, Whales and Dolphins! (Wild Kratts)
- Wild Style
- Wild Style (Enhanced Edition)
- Wild Tech! (Wild Kratts)
- Wild Work! Animal Trainers
- Wild, Wild Wolves
- Wildlife on Paper
- Wildlife Scientists
- Wildlife Wong and the Orangutan
- Wildlife Wong and the Pygmy Elephant
- Wilfred's Wolf
- Will You Be My Friend?
- William The Friesian
- Willkommen im Zoo!
- Wings