- I am the Danger
- I Can't Believe It!
- I fabbricanti di uomini
- I Love Rainforests
- I Spy Island
- I Want A Bearded Dragon (Best Pets For Kids Book 2)
- I Want A Leopard Gecko (Best Pets For Kids Book 1)
- I Want A Puppy (Best Pets For Kids Book 4)
- I, Galileo
- Illustrated Science for Boys and Girls
- Im Wald
- Imaginary Borders
- Imagine With Me
- Incendio en la sabana y otros cuentos
- Ind til kernen - eventyret om Niels Bohr
- Innovation Nation
- Inquinamento Ecologia e Società
- Insects
- Inside a Plant
- Inside Ecosystems and Biomes
- Inside of a Dog -- Young Readers Edition
- Inside the Cabinet of Curiosities
- Inside the Human Body
- Into a Black Hole