Easton Press Douglas Adams books:
Mostly Harmless - Signed First Edition of Science Fiction - 1992
The Hitchhiker's Guide to The Galaxy - Masterpieces of Science Fiction - 1998
5 Volume Douglas Adams set including the following books :
The Hitchhiker's Guide to The Galaxy - signed edition
So Long and Thanks for all the Fish
Life, the Universe and Everything
Mostly Harmless
The Restaurant at The end of the Universe