Frank Miller - The Dark Knight Returns #1, #2 & #3

Batman debuted in Detective Comics #27 (May 1939), created by artist Bob Kane with uncredited writer Bill Finger. The character emerged just one year after Superman, offering a darker alternative to the archetypal superhero. Unlike Superman's alien origins and godlike powers, Batman was Bruce Wayne, a wealthy human who trained himself to physical and intellectual perfection after witnessing his parents' murder. The original stories featured a grim vigilante who carried guns and killed criminals, reflecting the pulp magazine influences of The Shadow and The Spider. Detective Comics sales increased from approximately 200,000 to over 500,000 copies within Batman's first year. By 1940, Batman received his own self-titled series while continuing as the lead feature in Detective Comics, making him one of only three superheroes (with Superman and Wonder Woman) to sustain multiple titles through the 1940s-1950s superhero decline.

The character underwent significant evolution throughout his early decades. Robin's introduction in Detective Comics #38 (1940) doubled sales and softened Batman's edge, creating the Dynamic Duo concept that defined the property for decades. The 1940s-1950s saw the addition of core elements: Alfred the butler, Commissioner Gordon, the Batcave, and villains including Joker, Catwoman, Penguin, and Two-Face. The Comics Code Authority's 1954 implementation neutered Batman's darker elements, leading to science fiction stories featuring aliens and transformations that nearly killed the series. Sales dropped to approximately 150,000 copies by 1964. Editor Julius Schwartz's "New Look" Batman in 1964, featuring Carmine Infantino's streamlined art and more detective-focused stories, revitalized the character. The 1966 Batman TV series, while campy, boosted comic sales to over 900,000 copies, though the bubble burst when the show ended in 1968.

The 1970s brought Batman back to his darker roots through creators Dennis O'Neil and Neal Adams, who redefined him as a nocturnal avenger operating from the shadows. Their collaboration, though lasting only about 20 issues across Detective Comics and Batman, influenced all subsequent interpretations. Stories like "The Joker's Five-Way Revenge" restored menace to Batman's rogues gallery. Sales stabilized around 200,000-300,000 copies through the 1970s. Steve Englehart and Marshall Rogers's Detective Comics run (#469-479, 1977-1978) further refined the dark knight approach. The 1980s brought revolutionary changes: Frank Miller's The Dark Knight Returns (1986) presented an aged Batman in a dystopian future, selling over 500,000 copies and legitimizing superhero comics as adult literature. Miller's Batman: Year One (1987) redefined the origin story. These works, alongside Alan Moore's The Killing Joke (1988), established Batman as comics' most psychologically complex superhero.

The ongoing Batman series experienced unprecedented success following Tim Burton's 1989 Batman film. Issue #436 coincided with the movie's release and sold over 1 million copies. Multiple Batman titles launched to meet demand: Shadow of the Bat, Legends of the Dark Knight, and later series pushed Batman to appearing in over 10 monthly comics. The "Knightfall" saga (1993), where villain Bane broke Batman's back, sold millions across multiple titles. Batman #500, featuring new Batman Jean-Paul Valley, sold over 3 million copies. However, market oversaturation contributed to the mid-1990s comics crash. Key creative runs included Doug Moench's atmospheric stories, Chuck Dixon's street-level approach, and later Grant Morrison's surreal epic incorporating Batman's entire publication history. The series maintained sales between 60,000-100,000 copies through market fluctuations.

Batman's influence on comics and popular culture extends far beyond sales figures. The character proved superheroes could sustain multiple interpretations - from campy crusader to urban legend to psychologically damaged vigilante - while remaining commercially viable. His rogues gallery, particularly the Joker, set standards for superhero villains as dark reflections of heroes. Batman demonstrated that superhero comics could tackle mature themes while maintaining mainstream appeal. The lack of superpowers made him relatable despite his wealth, inspiring the "peak human" character archetype. Publishing innovations including prestige format books, mature reader lines, and crossover events often premiered through Batman titles.

The ongoing Batman series reached issue #713 in 2011 before DC's New 52 relaunch reset numbering. Across multiple volumes and countless appearances, Batman has sold billions of comics, generated over $30 billion in merchandising and media revenue, and influenced every subsequent superhero creation. Key storylines remain perpetually in print, with collections like Year One and Dark Knight Returns selling millions of copies decades after publication. The character's ability to sustain multiple monthly titles for decades, support countless creative interpretations, and remain culturally relevant across 80+ years establishes Batman as arguably American comics' most successful creation. From Depression-era pulp vigilante to 21st-century global icon, Batman's evolution mirrors American popular culture while maintaining core appeals of justice, determination, and the belief that one person can make a difference.