1. The Hitch Hikers Guide to Galaxy
Douglas Adams
Dirk Gently's Holistic Detective Agency
HHGTTG - The Lost Chapters
The hitchhiker's guide to the galaxy
Life, the Universe and Everything
Life, the Universe, and Everything
The long dark tea-time of the soul
The more than complete hitchhiker's guide: the hitchhiker's ...
Mostly harmless
The Restaurant at the end of the universe
So Long, and Thanks for All the Fish
The Ultimate Hitchhiker's Guide - All Six Books
The ultimate hitchhiker's guide to the galaxy