| # | Book Title | Author | |
|---|---|---|---|
| Civil War: Heroes Who Risked Everything for Freedom | Lakin, Patricia | ||
| Monuments and Landmarks: Mount Rushmore's Hidden Room and Other Monumental Secrets | Calkhoven, Laurie | ||
| Revolutionary War: The Founding Fathers Were Spies! | Lakin, Patricia | ||
| Space Age: You Can't Bring a Sandwich to the Moon...and Other Stories about Space! | Calkhoven, Laurie | ||
| World War I: Fearless Flyers, Dazzle Painters, and Code Talkers! | Dennis, Elizabeth | ||
| World War II: Secret Agents! Sharks! Ghost Armies! | Calkhoven, Laurie |