- I Am a Beaver
- I am a Monarch Butterfly
- I Am a Polar Bear
- I Am a Sea Horse
- I am Allosaurus
- I Am An Ostrich, Don't You Know
- I Am An Ostrich, Don't You Know: A 15-Minute Book, Educational Version
- I Am Bald Eagle
- I Am Bat
- I am Caring
- I am Jane Goodall
- I am not an Elephant
- I Am Phoenix
- I Am So Small
- I Am the Shark
- I am Worth the Wait
- I Am Your New Puppy
- I and You and Don't Forget Who, 20th Anniversary Edition
- I Can Hear
- I Can Jump Puddles: Australian Children's Classics
- I can roar like a Dinosaur
- I Don't Know If I Want a Puppy/Yo no sé si quiero un perrito
- I Have a Pet
- I Howl, I Growl
- I Howl, I Growl (Enhanced Edition)
- I Jumped Rope with a Buffalo
- I Knew When I Was Five
- I Know a Cat and He Is Up to Something
- I Like the Farm
- I Love all the Animals in this World
- I Love Cats
- I Love Cats (Enhanced Edition)
- I Love Dogs
- I Love Dogs (Enhanced Edition)
- I love Fall and All of Autumn
- I Love God's Creatures
- I Love Goldfish
- I Love Goldfish (Enhanced Edition)
- I Love Guinea Pigs
- I Love Guinea Pigs (Enhanced Edition)
- I Love Hamsters
- I Love Hamsters (Enhanced Edition)
- I Love Hermit Crabs
- I Love Hermit Crabs (Enhanced Edition)
- I Love My Dog
- I Love the Farm: Early Learning to Read Books
- I Love The Zoo
- I Love You, ZooBorns!
- I Luv Tigers and All Things Feline
- I Really Want the Cake
- I See an Animal
- I See an Elephant
- I See Sea Food
- I See the Ocean
- I See the Ocean (Enhanced Edition)
- I See You. Do You See Me?
- I Spy With My Little Eye - Animals Can You Spot the Animal That Starts With...? A Really Fun Searc...
- I tre porcellini
- I Use Every Wish On You
- I Want A Bearded Dragon
- I Want a Cat
- I Want a Dog
- I Want A Hamster!
- I Want A Leopard Gecko
- I Want to Be a Brachiosaurus
- I Want to Be a Triceratops
- I Want to Be a Tyrannosaurus Rex
- I Want to Be a Velociraptor
- I Want to Be a Veterinarian
- I Want to Be a ZooKeeper
- I Was Once a Caterpillar
- I Was the Great Auk: A 15-Minute Book
- I Wish I Had a... Puppy's Life!
- I Wish I had and Elephant
- I Wonder Who?
- I'm a Chicken, Get Me Out Of Here!
- I'm a Country Gopher
- I'm a Reindeer
- I'm Cubby the Lion
- I'm Hank, and I am a rescue dog.
- I'm Trying to Love Spiders
- Ian the Iguana
- Ice Fishing
- Icebergs & Glaciers
- Ich sehe was du nicht siehst: Tiere. Kannst du das Tier erkennen, das mit ... beginnt?
- If animals could talk. The world of animals voices: What is my cry?
- If Bees Disappeared
- If da Vinci Painted a Dinosaur (The Reimagined Masterpiece Series)
- If Dogs Run Free
- If Elephants Disappeared
- If I Give My Cat Spaghetti
- If I Ran the Dog Show: All About Dogs
- If I Were a Horse
- If I Were a Snowman
- If Polar Bears Disappeared
- If Sharks Disappeared
- If the World Were 100 Animals
- If You Hopped Like A Frog
- If You Love Dolphins, You Could Be...
- If You See a Lion
- If You Want a Friend in Washington
- If You Were an Elephant
- If You Were Born a Kitten
- Igualitierra
- Iguanodon
- Iguanodon (Enhanced Edition)
- Iguanodon and Other Bird-Footed Dinosaurs
- Iguanodonte. Diente de iguana
- ILA BEAN & THE PERFECT PUP
- IN AND OUT THE BIRDHOUSE!
- In My Backyard
- In Plain Sight
- In Riva al Mare
- In the Dark
- In The Grip Of Winter
- In The Path Of The Storm
- In the Rainforest
- In the Steps of The Great American Entomologist, Frank Eugene Lutz
- In the Steps of The Great American Herpetologist, Karl Patterson Schmidt
- In the Vet's Office
- Incredible Snakes: Exploring Our Incredible World Series
- Increíble pero real: Criaturas diminutas
- India
- Indiana Bones
- Indiana Bones and the Lost Library
- Indonesian Animals
- Indy’s Note to Sloane
- Inglese facile per bambini
- Insect Pollinators
- Insect Pollinators (Enhanced Edition)
- Insect Superpowers
- Insectibles (Band 3) - Das große Leuchten
- Insects
- Insects & Bugs for Kids
- Insekten für Kinder
- Inside of a Dog -- Young Readers Edition
- Internat Lindenberg. Rettet den Reiterhof!
- Intestines, Zombies, and Jumping Beans
- Into the Blue
- Into the Woods
- Introduction to Dinosaurs
- Invasive Animal Species
- Invertebrates
- Investigating Animal Life Cycles