Stranger in a Strange Land

Despite the anachronistic treatment of women, this really is a great example of the way genre can be used to simultaneously push a particular framework while telling a moving story. There's a lot of heavy preaching here, but at the end I had that fantastic gulp of sadness when I have to leave the fictional world behind.

Also, I'm REALLY interested in how my beloved [redacted] can be so influenced by this book without getting whiplash over how blasphemous it is to their faith!