Space Odyssey Series
The Space Odyssey Series is one of the true classic Science Fiction series, written by the late Sir Arthur C Clarke. Originally to be written as a screenplay with Stanley Kubrick, it was eventually decided both novel and film should be written simultaneously. In the end, the novel was released a few months after the film, in 1968. The idea for 2001 was based loosely on Clarke's short story "The Sentinel".
It wasn't until 1982 that Clarke returned to the 2001 story and made the sequel 2010. 2061 and 3001 eventually followed, however only 2001 and 2010 have been adapted into films.