It might be useful to think of genres as tags instead of boxes.

Thank you, @Elena Stofle!I also think one of the things that really sets Inkshares apart from other publishers is the diversity of the stories we have here. Some of the books in this community are so unique, so original, that a lot of traditional publishers would overlook them in favor of clones of whatever book is currently the most popular on the market. A lot of Inkshares books are really groundbreaking in their own right, exploring ideas and themes you’re just not likely to find anywhere else. I think that’s something the entire Inkshares community should be really proud of, and eager to show off to the world. :)

@Evan Graham I quite agree and I hope that one day we can have multiple genres listed. Don’t put me in a box! lol 

I’ll definitely second this. Especially considering that some of the genres we have available are actually subgenres. Tantalus Depths is listed under Hard Sci-Fi, for example, but I don’t think it would currently show up if you were just searching under "sci-fi." The same would go for the Space Opera subgenre, or for the Fairy Tale subgenre of the Fantasy genre.
Not to mention that fantasy, sci-fi, realistic fiction, historical fiction, biography, etc. could all, depending on the nature of the story, also fit under the genre of humor, adventure, thriller, etc.
Almost every book on this site could potentially be considered two or more different genres.