Superhero comic books may look silly: shiny covers, muscular bodies wearing skin-tight suits, and heroes flying through the air. Yet these thin monthly books remain one of the clearest cultural products of the United States. Compared with European graphic novels, they can seem light and childish. Compared with Japanese manga, they may seem more innocent because they stay focused on heroism. They are also part of American consumer culture: what once cost only a few cents can now cost as much as a latte.

Still, what truly makes them American lies in the stories they tell. In 1961, the Fantastic Four introduced a new kind of superhero. They were ordinary people transformed against their will by cosmic rays, at once powerful and unwilling victims of science and circumstance. Characters such as Spider-Man, the Hulk, and Wolverine followed: lonely outsiders pushed to become imperfect heroes, bound to save us over and over again. They follow the moral rule made famous by Peter Parker, the mild-mannered student behind the mask of Spider-Man, that with great power comes great responsibility. And beyond that lies a belief that is deeply, perhaps naively, American: that power, guided by justice, will ultimately do what is right.

Today, Marvel and DC, the two biggest comic book publishers, continue to reshape those ideas. More diverse heroes, including women and people of color, have moved into leading roles, reflecting a changing society. Yet beneath these changes, older tensions remain — loneliness, the weight of the past, and the dangers of unchecked power. Perhaps that is exactly why these comics continue to draw readers in. Ridiculous as they may be, superhero comics show America as it truly sees itself — honorable ideals and all.