| 2002 | 4.42 | 480 pages? duration |
| 2011 | 4.14 | 64 pages? duration |
The Portable Atheist: Essential Readings for the Nonbeliever | 2007 | 3.94 | 530 pages? duration |
| 1968 | 4.09 | 292 pages? duration |
| 2007 | 3.25 | 294 pages? duration |
Darwin's Dangerous Idea: Evolution and the Meanings of Life | 1996 | 4.33 | 598 pages? duration |
| 2006 | 3.26 | 128 pages? duration |
| 2011 | 3 | 100 pages? duration |
| 1951 | 3.6 | 288 pages? duration |
| 1959 | 4.02 | 368 pages? duration |
| 1952 | 3.8 | 295 pages? duration |
| 1955 | 3.8 | 278 pages? duration |
Time's Eye - Arthur C. Clarke
- Stephen Baxter
| 2003 | 3.45 | 379 pages? duration |
Sunstorm - Arthur C. Clarke
- Stephen Baxter
| 2005 | 3.5 | ? pages? duration |
We - Yevgeny Zamyatin
- Bela Shayevich (translator)
| 1924 | 3.71 | 256 pages? duration |
Do Androids Dream of Electric Sheep? | 1968 | 3.94 | 223 pages? duration |
| 2006 | 3.43 | 364 pages? duration |
Stranger in a Strange Land | 1961 | 3.68 | 422 pages? duration |
| 1989 | 4.26 | 492 pages? duration |
Firstborn - Arthur C. Clarke
- Stephen Baxter
| 2007 | 2 | 304 pages? duration |
| 1975 | 3.86 | 294 pages? duration |
| 1985 | 3.7 | 504 pages? duration |
| 1953 | 3.91 | 227 pages? duration |
| 1900 | 3.88 | 332 pages? duration |
| 2008 | 3.25 | 300 pages? duration |