Understanding Comics by Scott McLeod is the graphic book that opened my mind to non-hero comics. I read it at least twice a year. I attended a lecture he gave at our local art school. Anyone interested in art, animation, comics, superheroes, manga, anime, etc. should read it. Very deep concepts about how we read sequential art stories all done in a fun comic book style!!! He provides a lot of examples and I ended up buying a lot of them and appreciating non-super hero stories.
So many to mention but all of Jeff smith’s work, Echo, Atomic Robo. Have to recommend stephen mcCranie’s, Mal and Chad, because he was my cartooning teacher, and the school setting he uses is my junior high school. It’s about a genius kid who, with a special formula, makes his dog talk. He and his dog get into hilarious adventures. His books are Reminiscent of Phineas and Ferb, Sunny with a Chance of Meatballs, Calvin and Hobbs, and Johnny Test, I always enjoy stories that feature animals.
BTW, by super heroes, does that include fantasy (hellboy), sci fi (star trek, star wars)? vs. reading stories of normal people. Because I consider Hellboy a super hero.