| #2 |  The Hitchhiker's Guide to the Galaxy
| 4.24 | 3,372 reads | |
| #3 |  The Restaurant at the End of the Universe
| 4.06 | 1,078 reads | |
| #4 |  Life, the Universe and Everything
| 4.03 | 826 reads | |
| #6 |  So Long, and Thanks for All the Fish
| 3.93 | 674 reads | |
| #7 |  Mostly Harmless
| 3.81 | 537 reads | |
| #8 |  The Visitor
| 3.75 | 48 reads | |
| #9 |  The Invasion
| 3.92 | 71 reads | |
| #10 |  Night Watch
| 4.43 | 329 reads | |
| #16 |  Carrying the Fire: An Astronaut's Journeys
| 5 | 2 reads |