Books in the Series (Trilogy) are as follows:
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
And Another Thing...
Two omnibus editions were created by Douglas Adams to combine the Hitchhiker series novels and to "set the record straight". The stories came in so many different formats that Adams stated that every time he told it he would contradict himself. Therefore, he stated in the introduction of
The More Than Complete Hitchhiker's Guide that "anything I put down wrong here is, as far as I'm concerned, wrong for good." The two omnibus editions were The More Than Complete Hitchhiker's Guide, Complete and Unabridged (published in 1987) and The Ultimate Hitchhiker's Guide, Complete and Unabridged (published in 1997).
The Hitch Hiker's Guides: A Trilogy in Four Parts by Douglas Adams (Paperback)
Condition of books may vary from very used to good condition, none are brand new unless stated in title.