- W is for Whale
- Waggles at Bat
- Waiting for Ice
- Waiting for the Night
- Wally, the walrus - Morso, le morse
- Walruses: For Kids - Amazing Animal Books for Young Readers
- Wandering Woolly
- Wandi
- Wanted! Criminals of the Animal Kingdom
- Wanted! The Hundred-Mile-An-Hour Dog
- War Dog
- Was Kinder wissen wollen – Was wäscht der Waschbär?
- Wasps For Kids
- Watch Out!
- Watching Jodi Grow
- Water
- Water Frog Polliwogs
- Water World
- Water-Walking, Sidewinding, and Other Remarkable Reptile Adaptations
- We Don't Eat This!
- We Feel Happy
- We Like Shells Back On The Hunt
- We Wear Pants
- We're All Wonders
- Wee Peter Pug
- Weird & Wild Animal Facts
- Weird Bugs
- Weird Creatures of the World
- Weird Creatures of the World
- Weird Snowy Day
- Weird Spooky Day
- Weird Sports Day
- Weirdo
- Welcome to the World, Zooborns!
- Welcome to the Zoo. Professor Stormybrain and Friends
- Well, Will You Look at That? Ears
- Well, Will You Look at That? Eyes
- Werewolves
- Wereworld: Shadow of the Hawk (Book 3)
- Whale Boy
- Whale in a Fishbowl
- Whale Song Wedding
- Whales
- Whales and Dolphins of Canada
- Whales For Kids
- Whales: A Kids Fun Facts Book
- Whales: Giants of the Deep
- Whales: Giants of the Deep: Educational Version
- Whales: The Gentle Giants
- What Am I? Where Am I?
- What Animal Am I? Guess the Animal Kids Book
- What Animals Do You Have Living In Your Backyard?
- What Do Animals Do All Day?
- What Do Animals Do in Spring?
- What Do Animals Do in Summer?
- What Do Animals Do in Winter?
- What Do Bees Do in Summer?
- What Do Birds Eat?
- What Do Insects Eat?
- What Do You See? Alphabet
- What Does Spider Poop Look Like?
- What Dog is THAT?
- What Eats That?
- What If You Could Sniff Like a Shark?: Explore the Superpowers of Ocean Animals
- What If You Had An Animal Nose?
- What If You Had An Animal Tail?
- What If You Had An Animal Tongue!?
- What If You Had Animal Ears?
- What If You Had Animal Eyes?
- What If You Had Animal Feet?
- What If You Had Animal Hair?
- What If You Had Animal Teeth?
- What If You Had T. Rex Teeth?: And Other Dinosaur Parts
- What is an insect?
- What Is Baby Gorilla Doing?
- What Is Hatching?
- What is this ?
- What Katy Did
- What Lives in a Shell?
- What Makes a Monster?
- What Makes: A Bird a Bird
- What Makes: A Fish a Fish