This is the ninth in my one-book-at-a-time bookshelf.
Have you read this book!
I have to ask that question with an exclamation mark to express my incredulity that you might not have read Dune. It is a seminal work (if such a thing exists) in the genre of science fiction. The author had so many great ideas, all jammed into one novel, that people are still expanding the Dune series well past the author's death.
This is the first 'adult' work that I've revealed on the bookshelf and your life will be poorer if you haven't explored its pages.