- I Am a SEAL Team Six Warrior
- I Am a Star
- I Am Malala
- I grandi protagonisti della Storia
- I Have Lived a Thousand Years
- I Spy the Illuminati Eye
- I Will Plant You a Lilac Tree
- I'm Still Scared
- I, Columbus
- Ickstory
- Ida M. Tarbell
- If I Were a Kid In Ancient China
- If I Were A Kid in Ancient Egypt
- If I Were a Kid In Ancient Greece
- If I Were a Kid In Ancient Rome
- IFNI 1957 - 1958
- Ilíada
- Immigration, Refugees, and the Fight for a Better Life
- In Caesar's Rome With Cicero
- In Defiance of Hitler
- In Harm's Way (Young Readers Edition)
- In My Hands: Memories of a Holocaust Rescuer
- In Pericle's Athens with Socrates
- In The Court of King Arthur
- In the Days of William the Conqueror
- In the Fields and the Trenches
- In the Garden of the Caliph
- In the Heart of Africa
- In the Heart of the Sea (Young Readers Edition)
- In the Penal Colony
- In the Shadow of Liberty
- In Vietnam
- Ind til kernen - eventyret om Niels Bohr
- Independence Hall
- Industrializing the United States
- Infinite Hope
- Innovation Nation
- Internment Camps for Japanese-Americans During World War II: A History Just for Kids!
- Into the Blizzard (Young Readers Edition)
- Into the White
- Introduction to Igbo Mythology for Kids
- Ipazia di Alessandria
- Iran
- Ireland Our Island Story
- Irena's Children
- Isaac Newton
- Island Treasures
- Israel
- Israeli Fighting
- Istoria lumii hartă cu hartă
- Istoria Romanilor Pentru Elevi
- It's All American
- It's Outta Here!
- Italy