The Hitchhiker’s Guide to the Galaxy is a comedy science fiction series about the adventures of a human, Arthur Dent, following the destruction of the planet Earth. His ultimate quest? To find the answer to the ultimate question of life, the universe, and everything*
The series was also made into a series of radio plays
Around 25 years ago the first two books were also made into a television series.
Around 5 years ago a movie was also made based (loosely) on the first novel.