The Hitchhiker’s Guide to the Galaxy Series

9 books in this series, ordered by part

The Hitchhiker's Guide to the Galaxy by Douglas Adams

The Hitchhiker's Guide to the Galaxy by Douglas Adams

The Ultimate Hitchhiker’s Guide to the Galaxy by Douglas Adams

The Restaurant at the End of the Universe by Douglas Adams

Life, the Universe and Everything by Douglas Adams

So Long, and Thanks for All the Fish by Douglas Adams

Mostly Harmless by Douglas Adams

And Another Thing... by Eoin Colfer

The Salmon of Doubt: Hitchhiking the Galaxy One Last Time by Douglas Adams