Major Malcolm Wheeler-Nicholson, born as Malcolm Strain on was an American pulp magazine writer and entrepreneur who pioneered the American comic book, publishing the first such periodical consisting solely of original material rather than reprints of newspaper comic strips. Historian and author David Hajdu credits Wheeler-Nicholson as "the link between the pulps and what we know of as comics today." He launched the magazine comics company National Allied Publications in 1934, which would evolve to become DC Comics, one of the United States' two largest comic book publishers along with rival Marvel Comics. He was a 2008 Judges' Choice inductee into the Will Eisner Comic Book Hall of Fame.

An American comic book is a thin periodical originating in the United States, on average 32 pages, containing comics. While the form originated in 1933, American comic books first gained popularity after the 1938 publication of Action Comics, which included the debut of the superhero Superman. This was followed by a superhero boom that lasted until the end of World War II. After the war, while superheroes were marginalized, the comic book industry rapidly expanded and genres such as horror, crime, science fiction and romance became popular. The 1950s saw a gradual decline, due to a shift away from print media in the wake of television and the impact of the Comics Code Authority. The late 1950s and the 1960s saw a superhero revival and superheroes remained the dominant character archetype throughout the late 20th century into the 21st century.