- The Hitchhiker's Guide to the GalaxyDouglas Adams
- Life, the Universe and EverythingDouglas Adams
- Works (Hitch Hiker's Guide to the Galaxy / Restaurant at the End of the Universe / Life, the Universe and Everything / So Long, and Thanks for All the Fish / Mostly Harmless / Young Zaphod Plays it Safe)Douglas Adams
- The Restaurant at the End of the UniverseDouglas Adams
- So long, and thanks for all the fishDouglas Adams
- Mostly HarmlessDouglas Adams
- The Long Dark Tea-Time of the SoulDouglas Adams
- Dirk Gently’s Holistic Detective AgencyDouglas Adams
- Novels (Hitch Hiker's Guide to the Galaxy / Restaurant at the End of the Universe / Life, the Universe and Everything / So Long, and Thanks for All the Fish)Douglas Adams
- The Salmon of DoubtDouglas Adams
- Last Chance to SeeDouglas Adams, Mark Carwardine
- Works (The Hitch Hiker's Guide to the Galaxy / The Restaurant at the End of the Universe / Life, the Universe and Everything / So Long, and Thanks for All the Fish / Young Zaphod Plays it Safe)Douglas Adams
- Novels (Hitch Hiker's Guide to the Galaxy / Restaurant at the End of the Universe / Life, the Universe and Everything / So Long, and Thanks for All the Fish / Mostly Harmless)Douglas Adams
- The Deeper Meaning of LiffDouglas Adams, John Lloyd
- The Time Traveller's AlmanacJeff VanderMeer, Ann VanderMeer et al.
- The meaning of LiffDouglas Adams, John Lloyd
- Novels (Dirk Gently's Holistic Detective Agency / Long Dark Tea-Time of the Soul)Douglas Adams
- The Original Hitchhiker Radio ScriptsDouglas Adams
- The Ultimate Hitchhiker's Guide to the GalaxyDouglas Adams
- Hitchhiker's Trilogy (Hitch Hiker's Guide to the Galaxy / Restaurant at the End of the Universe / Life, the Universe, and Everything)Douglas Adams
- Doctor Who and the Krikkit MenJames Goss, Douglas Adams
- The Utterly utterly merry comic relief Christmas bookDouglas Adams, Peter Fincham
- La vita, l'Universo e tutto quantoDouglas Adams
