* Ken Jennings' Junior Genius Guides: Greek Mythology
* Ken Jennings' Junior Genius Guides: Maps and Geography
* Ken Jennings' Junior Genius Guides: Outer Space
* Ken Jennings' Junior Genius Guides: U.S. Presidents
* Ken Jennings' Junior Genius Guides: The Human Body
* Ken Jennings' Junior Genius Guides: Dinosaurs
* Ken Jennings’ Junior Genius Guides: Ancient Egypt