- Douglas Adams's Starship Titanic by Terry Jones, 1998-10-27
- The Deeper Meaning of Liff: A Dictionary of Things There Aren't Any Words for Yet--But There Ought to Be by Douglas Adams, John Lloyd, 2005-04-19
- The Hitchhiker's Trilogy: The Hitchhiker'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; Mostly Harmless by Douglas Adams, 2000
- The Hitchhiker's Guide to the Galaxy by Douglas Adams, 1995-09-27
- The Hitchhiker's Guide to the Galaxy by Douglas Adams, 2005-03-29
- The Hitchhiker's Guide to the Galaxy: The Primary Phase (BBC Radio Collection) by Douglas Adams, 2001-04-02
- So Long, and Thanks for All the Fish by Douglas Adams, 2006-10-03
- Hitchhiker: A Biography of Douglas Adams by M. J. Simpson, 2004-10-25
- The Hitch Hiker's Guide to the Galaxy (BBC Radio Collection) by Douglas Adams, 1998-03-02
- The Hitch Hiker's Guide to the Galaxy by Douglas Adams, 2002-03-08
- The Deeper Meaning of Liff by Douglas Adams, John Lloyd, 1990-11-09
- Mostly Brilliant by Douglas Adams, 2002-04-10
- Douglas Adams at the "BBC" (Radio Collection) by Douglas Adams, 2004-09-06
- Iras Celestiales by Douglas Adams, 1993-11
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