The Restaurant at the End of the Universe
Douglas Adams
Hitchhiker's Guide to the Galaxy (2)
Life, the Universe, and Everything
The Meaning of Liff
Douglas Adams & John Lloyd
Dirk Gently's Holistic Detective Agency
Dirk Gently (1)
The Long Dark Tea-Time of the Soul
Last Chance to See
Douglas Adams & Mark Carwardine
The Ultimate Hitchhiker's Guide
So Long, and Thanks for All the Fish
Hitchhiker's Guide to the Galaxy (4)
The Salmon of Doubt: Hitchhiking the Galaxy One Last Time
Dirk Gently (3)
Mostly Harmless
Hitchhiker's Guide to the Galaxy (5)