Wow, I just had a look at Sci-Fi and Fantasy sub-categories of ebooks on amazon.com, and guess which ones are by far the biggest, with over 13,000 titles? Dystopian and Post-Apocalyptic! Not that I'm surprised, mind you, with all the TV shows and movies with those themes, not to mention even the daily news in the real world! But it made me stop and think about how I've been describing my book to people. You see, my Rhuna series is set in mystical Atlantis, which was said to be a Utopian…