American comic book in the context of "Iron Man"

Comics are a medium used to express ideas with images, often combined with text or other visual information. It typically takes the form of a sequence of panels of images. Textual devices such as speech balloons, captions, and onomatopoeia can indicate dialogue, narration, sound effects, or other information. There is no consensus among theorists and historians on a definition of comics; some emphasize the combination of images and text, some sequentiality or other image relations, and others historical aspects such as mass reproduction or the use of recurring characters. Cartooning and other forms of illustration are the most common means of image-making in comics. Photo comics are a form that uses photographic images. Common forms include comic strips, editorial and gag cartoons, and comic books. Since the late 20th century, bound volumes such as graphic novels and comic albums have become increasingly common, along with webcomics.

The history of comics has followed different paths in different cultures. Scholars have posited a pre-history as far back as the Lascaux cave paintings. By the mid-20th century, comics flourished, particularly in the United States, western Europe (especially France and Belgium), and Japan. The history of European comics is often traced to Rodolphe Töpffer's cartoon strips of the 1830s, while Wilhelm Busch and his Max and Moritz also had a global impact from 1865 on, and became popular following the success in the 1930s of strips and books such as The Adventures of Tintin. American comics emerged as a mass medium in the early 20th century with the advent of newspaper comic strips; magazine-style comic books followed in the 1930s, and the superhero genre became prominent after Superman appeared in 1938. Histories of Japanese comics (manga) propose origins as early as the 12th century. Japanese comics are generally held separate from the evolution of Euro-American comics, and Western comic art probably originated in 17th-century Italy. Modern Japanese comic strips emerged in the early 20th century, and the output of comic magazines and books rapidly expanded in the post-World War II era (1945–) with the popularity of cartoonists such as Osamu Tezuka. Comics has had a lowbrow reputation for much of its history, but towards the end of the 20th century, it began to find greater acceptance with the public and academics.

Superman is a superhero created by writer Jerry Siegel and artist Joe Shuster, first appearing in issue #1 of Action Comics, published in the United States on April 18, 1938. Superman has been regularly published in American comic books since then, and has been adapted to other media including radio serials, novels, films, television shows, theater, and video games. Superman is the archetypal superhero: he wears an outlandish costume, uses a codename, and fights evil and averts disasters with the aid of extraordinary abilities. Although there are earlier characters who arguably fit this definition, it was Superman who popularized the superhero genre and established its conventions. He was the best-selling superhero in American comic books up until the 1980s; it is also the best-selling comic book series in the world with 600 million copies sold.

Superman was born Kal-El, on the fictional planet Krypton. As a baby, his parents Jor-El and Lara sent him to Earth in a small spaceship shortly before Krypton was destroyed in an apocalyptic cataclysm. His ship landed in the American countryside near the fictional town of Smallville, Kansas, where he was found and adopted by farmers Jonathan and Martha Kent, who named him Clark Kent. The Kents quickly realized he was superhuman; due to the Earth's yellow sun, all of his physical and sensory abilities are far beyond those of a human, and he is nearly impervious to harm and capable of unassisted flight. His adoptive parents having instilled him with strong morals, he chooses to use his powers to benefit humanity, and to fight crime as a vigilante. To protect his personal life, he changes into a primary-colored costume and uses the alias "Superman" when fighting crime. Clark resides in the fictional American city of Metropolis, where he works as a journalist for the Daily Planet alongside supporting characters including his love interest and fellow journalist Lois Lane, photographer Jimmy Olsen, and editor-in-chief Perry White. His enemies include Brainiac, General Zod, and archenemy Lex Luthor.

Batman is a superhero who appears in American comic books published by DC Comics. Batman was created by artist Bob Kane and writer Bill Finger, and debuted in the 27th issue of the comic book Detective Comics on March 30, 1939. In the DC Universe, Batman is the alias of Bruce Wayne, a wealthy American playboy, philanthropist, and industrialist who resides in the fictional Gotham City. His origin story features him swearing vengeance against criminals after witnessing the murder of his parents, Thomas and Martha, as a child, a vendetta tempered by the ideal of justice. He trains himself physically and intellectually, crafts a bat-inspired persona, and monitors the Gotham streets at night. Kane, Finger, and other creators accompanied Batman with supporting characters, including his sidekicks Robin and Batgirl; allies Alfred Pennyworth and James Gordon; love interest and occasional adversary Catwoman; as well as foes such as the Penguin, the Riddler, Two-Face, and his archenemy, the Joker.

Kane conceived Batman in early 1939 to capitalize on the popularity of Superman; although Kane frequently claimed sole creation credit, Finger substantially developed the concept from a generic superhero into something more bat-like. They drew inspiration from pulp fiction characters like the Shadow, Sherlock Holmes, and the Green Hornet. Batman received a spin-off publication, Batman, in 1940. Kane and Finger introduced Batman as a ruthless vigilante who frequently killed or maimed criminals, but he evolved into a just, tempered superhero with a stringent moral code that prohibits killing during the 1940s. Unlike most superheroes, Batman does not possess any superpowers, instead relying on his intellect, fighting skills, and wealth. The 1960s Batman television series used a camp aesthetic, which continued to be associated with Batman for years after it ended. Various creators worked to return Batman to his darker roots in the 1970s and 1980s, culminating with the 1986 miniseries The Dark Knight Returns by Frank Miller.

A superpower is a special or extraordinary ability far greater than what is considered normal, possessed by those of superhuman status. Superpowers are typically displayed in science fiction and fantasy media such as comic books, TV shows, video games, and film as the key attribute of a superhero. The concept originated in American comics and pulp fiction of the 1930s and 1940s, and has gradually worked its way into other genres and media.

A graphic novel is a self-contained, book-length form of sequential art. The term graphic novel is often applied broadly, including fiction, non-fiction, and anthologized work, though this practice is highly contested by comics scholars and industry professionals. It is, at least in the United States, typically distinct from the term comic book, which is generally used for comics periodicals and trade paperbacks. It has also been described as a marketing term for comic books.

Fan historian Richard Kyle coined the term graphic novel in an essay in the November 1964 issue of the comics fanzine Capa-Alpha. The term gained popularity in the comics community after the publication of Will Eisner's A Contract with God (1978) and the start of the Marvel Graphic Novel line (1982) and became familiar to the public in the late 1980s after the commercial successes of the first volume of Art Spiegelman's Maus in 1986, the collected editions of Frank Miller's The Dark Knight Returns in 1986 and Alan Moore and Dave Gibbons' Watchmen in 1987. The Book Industry Study Group began using graphic novel as a category in book stores in 2001.

The history of American comics began in the 19th century in mass print media, in the era of sensationalist journalism, where newspaper comics served as further entertainment for mass readership. In the 20th century, comics became an autonomous art medium and an integral part of American culture.

European comics are comics produced in Europe. The comic album is a very common printed medium. The typical album is printed in large format, generally with high quality paper and colouring, commonly 24 cm × 32 cm (9.4 in × 12.6 in), has around 48–60 pages, but examples with more than 100 pages are common. While sometimes referred to as graphic novels, this term is rarely used in Europe, and is not always applicable as albums often consist of separate short stories, placing them somewhere halfway between a comic book and a graphic novel. The European comic genres vary from the humorous adventure vein, such as The Adventures of Tintin and Asterix, to more adult subjects like Tex Willer, Diabolik, and Thorgal.

Spider-Man is a superhero in American comic books published by Marvel Comics. Created by writer-editor Stan Lee and artist Steve Ditko, he first appeared in the anthology comic book Amazing Fantasy #15 (August 1962) in the Silver Age of Comic Books. Considered one of the most popular and commercially successful superheroes, he has been featured in comic books, television shows, films, video games, novels, and plays.

Spider-Man is the secret identity of Peter Benjamin Parker, who was raised by his Aunt May and Uncle Ben in Queens, New York City, after the death of his parents. Lee, Ditko, and later writers had the character deal with the struggles of adolescence and young adulthood. Readers identified with his self-doubt and loneliness. Unlike previous teen heroes, Spider-Man was not a sidekick nor did he have a mentor. He would be given many supporting characters, such as his Daily Bugle boss J. Jonah Jameson; friends like Harry Osborn and Flash Thompson; romantic interests like Gwen Stacy, Mary Jane Watson, and the Black Cat; and enemies such as Doctor Octopus, the Green Goblin, and Venom. In his origin story, Peter gets his superhuman spider-powers and abilities after he was bitten by a radioactive spider. These powers include superhuman strength, speed, agility, reflexes and durability; clinging to surfaces and ceilings; and detecting danger with his precognitive "spider-sense". He sews a spider-web patterned spandex costume that fully covers his body and builds wrist-mounted "web-shooter" devices that shoot artificial spider-webs of his own design, which he uses for both fighting and "web swinging" across the city. Peter initially used his powers for personal gain, but after his Uncle Ben was killed by a burglar that he could have stopped but did not, he learned that "with great power comes great responsibility", and began to use his powers to fight crime as Spider-Man.