Comic books have been around in some form for nearly a century in the West, with the introduction of superheroes in particular putting the medium on the map. Since then, comics have seen numerous highs and lows, and despite movies based on the characters generating billions of dollars at the box office, monthly comic book sales aren't what they once were. Nevertheless, the medium may have its salvation in the form of a supposedly "rival" medium.
Source：https://www.cbr.com/manga-comic-books-marvel-dc/
