Comic book collecting the popularity of superhero characters Superman, Batman, and Captain Marvel. Since the 1960s, two publishers have dominated the American comic book industry: Marvel Comics, publisher of such comics as "Spider-Man", "X-Men", and "Fantastic Four", and DC Comics, which publishes titles such as "Superman", "Batman", and "Wonder Woman". Other large non-manga publishers include Image Comics, IDW, and Dark Horse Comics. As comic books regained their popularity in the 1960s during the boom of the Silver Age, fans organized comic book conventions, where they could meet to discuss their favorite comics with each other and eventually with the creators themselves. , numerous
American comic book wake of television and the impact of the Comics Code Authority. The late 1950s and the 1960s saw a superhero revival, and superheroes remain the dominant character archetype in the 21st century. Some fans collect comic books, helping drive up their value. Some have sold for more than US $1 million. Comic shops cater to fans, selling comic books, plastic sleeves ("bags") and cardboard backing ("boards") to protect the comic books. An American comic book is also known as a floppy comic. It is typically thin and stapled, unlike traditional books. American comic books are one of the three major