The Hitchhiker’s Guide to the Galaxy considered a cult classic with over 15 million copies sold. My first impression after reading the book, was how it felt like a series of questions but not a complete story.
Almost like, a troubled mind asking questions but not finding satisfactory answers. After reading background information about the book I learned that it was originally a radio comedy broadcast on BBC Radio 4 in 1978! This explains the books format and the feeling of incompleteness.
In other cult classics like 1984 by George Orwell or famous science fiction books of Jules Verne, A Brave New World by Aldous Huxley and Automatic Piano by Kurt Vonnegut etc., the stories are constructed from beginning to end. Characters are more detailed and there is feeling of conclusion at the end of this books.
THE HITCHHIKER'S GUIDE TO THE GALAXY 