| #2 |  Foundation and Earth
| 3.76 | 123 reads | |
| #3 |  Foundation's Edge
| 3.87 | 171 reads | |
| #4 |  Second Foundation
| 4.12 | 306 reads | |
| #5 |  Foundation and Empire
| 3.98 | 343 reads | |
| #6 |  Foundation
| 3.99 | 725 reads | |
| #7 |  Rendezvous with Rama
| 3.93 | 309 reads | |
| #8 |  Rama Revealed
| 3.37 | 26 reads | |
| #9 |  The Garden of Rama
| 3.13 | 36 reads | |
| #10 |  Rama II
| 3.33 | 55 reads | |
| #11 |  Shipstar
| 3.75 | 5 reads | |
| #12 |  Bowl of heaven
| 3.14 | 9 reads | |
| #13 |  Old Man's War
| 4.19 | 468 reads | |
| #14 |  Aurora
| 3.75 | 113 reads | |
| #15 |  Seveneves
| 3.92 | 316 reads | |
| #16 |  Hull Zero Three
| 3.45 | 20 reads |
