- E-bookMapheadKen Jennings
- E-bookBecause I Said So!Ken Jennings
- E-book100 Places to See After You DieKen Jennings
- E-bookPlanet FunnyKen Jennings
- E-bookGreek MythologyKen Jennings
- E-bookSpace Adventure Books SamplerStuart Gibbs
- E-bookMaps and GeographyKen Jennings
- E-bookU.S. PresidentsKen Jennings
- E-bookOuter SpaceKen Jennings
- E-bookAncient EgyptKen Jennings
- E-bookThe Serving LeaderKen Jennings
- E-bookThe Human BodyKen Jennings
- E-bookDinosaursKen Jennings
- E-bookHouse on Fire!Ken Jennings
- E-bookTen Thousand HorsesJohn Stahl-Wert
- E-bookThe Greater GoalKen Jennings