Douglas Adams
| The Meaning of Liff | 1983 |
| The Deeper Meaning of Liff | 1990 |
The Hitchhiker Books |
|
| The Hitchhiker's Guide to the Galaxy | 1979 |
| The Restaurant at the End of the Galaxy | 1980 |
| Life, the Universe and Everything | 1982 |
| So Long and Thanks for All the Fish | 1984 |
| The Original Hitchhiker Radio Scripts | 1985 |
| The More Than Complete Hitchhiker's Guide | 1986 |
| Mostly Harmless | 1992 |
Dirk Gently Series |
|
| Dirk Gently's Holistic Detective Agency | 1987 |
| The Long Dark Tea-time of the Soul | 1988 |
| The Salmon of Doubt | 1995 |
Non-Fiction Novels |
|
| Last Chance to See You | 1991 |