... and that's just between one set of covers. Next to them is a story of the survival of one man in the Holocaust told through metaphor. Next to that is a fairy tale. Next to that is a musing on what it means to grow up and be a man and a father, next to that is a story of how glorious the world is, next to that is a vampire romance, next to that is a story of how war is glorious... and next to that is a story of how war is hell, and next to that is a warning that we are all on a road to a dystopian future, and next to that is... well.
Maus. Bone. Superman: Secret Identity. Astro City. I, Vampire. Captain America (vol 1, 1943), Sgt. Rock. Martha Washington. Graphic Novels is a filing location in the library, but not everything in it is a superhero story.