This is the story of Arthur Dent, who, seconds before Earth is demolished to make way for a galactic freeway, is plucked off the planet by his friend, Ford Prefect, who has been posing as an out-of-work actor for the last fifteen years but is really a researcher for the revised edition of "The Hitchhiker's Guide to the Galaxy". Together they begin a journey through the galaxy aided by quotes from "The Hitchhiker's Guide to the Galaxy", with the words "don't panic" written on the front. ("A towel is about the most massively useful thing an interstellar hitchhiker can have.")
There are 5 other books in the Hitchhiker's series. Read them all.
There have been numerous adaptations to Hitchhiker's Guide, including a 1980s television series on BBC, a radio series in 2004, and a blockbuster movie starring Martin Freeman, Mos Def, Sam Rockwell, and Zooey Deschanel. The plot of the 2005 film adaptation differs widely from that of the radio show, book, and television series.
If you like the combination of humor, science fiction, and fantasy, check out these laugh-out-loud far-out-there titles.