The Hitchhiker's Guide to the Galaxy, written by Douglas Adams, is a comedic science fiction novel that follows the misadventures of Arthur Dent, an ordinary human who is swept off Earth just before its destruction to make way for a hyperspace bypass. Arthur embarks on a journey through space with his alien friend Ford Prefect, encountering bizarre characters and absurd situations along the way. The Hitchhiker's Guide to the Galaxy is a hilarious and satirical novel that pokes fun at the conventions of science fiction while also exploring philosophical themes.