Vertigo (also known as Vertigo Comics or DC Vertigo) was an imprint of the American comic book publisher DC Comics. It was created in 1993 to publish stories with more graphic or adult content, which did not fit within the restrictions of the Comics Code Authority or DC's primary superhero brand, thus allowing more creative freedom. These comics were free to contain explicit violence, substance abuse, sexuality, nudity, profanity, and other controversial subjects, similar to films and TV shows intended for adult audiences. Following a series of editorial restructurings in the 2010s, DC discontinued it in January 2020, instead publishing later "mature readers" work under the "DC" label. Although its initial publications were primarily in the horror and fantasy genres, over time it also published works dealing with crime, social commentary, speculative fiction, biography, and other genres. Originally publishing a mix of company-owned work based on DC's existing characters, and creator-owned work, its focus shifted to the latter. It pioneered in North America the publishing model in which monthly series sold through comic book shops are periodically collected into editions which are kept in print for bookstore sale.