| #1 |  The Killer Angels: The Classic Novel of the Civil War
| 4.18 | 74 reads | |
| #1 |  The Library of Alexandria: Centre of Learning in the Ancient World
| 2 | 1 read | |
| #1 |  We Could Not Fail: The First African Americans in the Space Program
| 2 | 1 read | |
| #1 |  The Vanished Library
| 0 | 0 reads | |
| #1 |  1491: New Revelations of the Americas Before Columbus
| 4.19 | 119 reads | |
| #1 |  Kepler's Witch
| 0 | 2 reads | |
| #1 |  The Bride of Science
| 0 | 1 read |