Douglas Adams

The Hitchhiker's Guide to the Galaxy: The Illustrated Edition

1989

The Ultimate Hitchhiker's Guide to the Galaxy

2002

The Restaurant at the End of the Universe

1995

Life, the Universe and Everything

1982

Dirk Gently's Holistic Detective Agency

2013

So Long, and Thanks for All the Fish

1999

The Hitchhiker's Guide to the Galaxy (Unabridged)

2005

The Restaurant at the End of the Universe (Unabridged)

2006

Life, the Universe and Everything (Unabridged)

2006

So Long, and Thanks for All the Fish (Unabridged)

2006

Mostly Harmless (Unabridged)

2006

Hitchhiker's Guide To The Galaxy, The Primary Phase Special

2008