Retroactive continuity, or retcon for short, is a literary device in which facts in the world of a fictional work that have been established through the narrative itself are adjusted, ignored, supplemented, or contradicted by a subsequently published work that recontextualizes or breaks continuity with the former.
Philip José Farmer was an American author known for his science fiction and fantasy novels and short stories.
The Wold Newton family is a literary concept derived from a form of crossover fiction developed by the American science fiction writer Philip José Farmer.
A fictional universe, also known as an imagined universe or a constructed universe, is the internally consistent fictional setting used in a narrative or a work of art. This concept is most commonly associated with works of fantasy and science fiction, and can be found in various forms such as novels, comics, films, television shows, video games, and other creative works.
A parallel universe, also known as an alternate universe, parallel world, parallel dimension, alternate reality, or alternative dimension, is a hypothetical universe co-existing with one's own, typically distinct in some way. The sum of all potential parallel universes that constitute reality is often called the "multiverse". Another common term for a parallel universe is "another dimension", stemming from the idea that if the 4th dimension is time, the 5th dimension—a direction at a right angle to the fourth—is a direction into any of the alternate spacetime realities.
A sequel is a work of literature, film, theatre, television, music, or video game that continues the story of, or expands upon, some earlier work. In the common context of a narrative work of fiction, a sequel portrays events set in the same fictional universe as an earlier work, usually chronologically following the events of that work.
A crossover is the placement of two or more otherwise discrete fictional characters, settings, or universes into the context of a single story. They can arise from legal agreements between the relevant copyright holders, common corporate ownership or unofficial efforts by fans.
An alternative universe is a setting for a work of fan fiction that departs from the canon of the fictional universe that the fan work is based on. For example, an AU fan fiction might imagine what would have taken place if the plot events of the source material had unfolded differently, or it might transpose the characters from the original work into a different setting to explore their lives and relationships in a different narrative context. Unlike typical fan fiction, which generally remains within the boundaries of the canon set out by the source material, alternative universe fan fiction writers explore the possibilities of pivotal changes made to characters' history, motivations, or environment, often combining material from multiple sources for inspiration. Characters' known motivations may vary considerably from their decisions in the canonical universe. The author of an alternative universe story thus can use the same characters, but send them down different paths to achieve a completely different plot.
The canon of a work of fiction is "the body of works taking place in a particular fictional world that are widely considered to be official or authoritative; [especially] those created by the original author or developer of the world". Canon is contrasted with, or used as the basis for, works of fan fiction and other derivative works.
The term expanded universe, sometimes called an extended universe, is generally used to denote the "extension" of a media franchise with other media, generally comics and original novels. This typically involves new stories for existing characters already developed within the franchise, but in some cases entirely new characters and complex mythology are developed. This is not necessarily the same as an adaptation, which is a retelling of the same story that may or may not adhere to the accepted canon. It is contrasted with a sequel that merely continues the previous narrative in a linear sequence. Nearly every media franchise with a committed fan base has some form of expanded universe.
American comic book tropes are common elements and literary devices related to American comic books.
The Buffyverse canon consists of materials that are thought to be genuine and those events, characters, settings, etc., that are considered to have inarguable existence within the fictional universe established by the television series Buffy the Vampire Slayer. The Buffyverse is expanded through other additional materials such as comics, novels, pilots, promos and video games which do not necessarily take place in exactly the same fictional continuity as the Buffy episodes and Angel episodes. Star Trek, Star Wars, Stargate and other prolific sci-fi and fantasy franchises have similarly gathered complex fictional continuities through hundreds of stories told in different formats.
A spinoff or spin-off is any narrative work derived from an already existing work that focuses on different aspects from the original work.
Win Scott Eckert is an American author and editor, best known for his work on the literary-crossover Wold Newton Universe, created by author Philip José Farmer, but much expanded-upon subsequently by Eckert and others. He holds a B.A. in Anthropology and a Juris Doctor.
A shared universe or shared world is a fictional universe from a set of creative works where one or more writers independently contribute works that can stand alone but fits into the joint development of the storyline, characters, or world of the overall project. It is common in genres like science fiction. It differs from collaborative writing in which multiple artists are working together on the same work and from crossovers where the works and characters are independent except for a single meeting.
Fan fiction or fanfiction, also known as fan fic, fanfic, fic or FF, is fiction written in an amateur capacity by fans as a form of fan labor, unauthorized by, but based on, an existing work of fiction. The author uses copyrighted characters, settings, or other intellectual properties from the original creator(s) as a basis for their writing and can retain the original characters and settings, add their own, or both. Fan fiction ranges in length from a few sentences to novel-length and can be based on fictional and non-fictional media, including novels, movies, comics, television shows, musical groups, cartoons, anime and manga, and video games.
Jane Austen fan fiction is the collection of numerous sequels and spin-offs produced by authors who have either used the plot of Austen's original novels, or have extended them, to produce new works of fiction. Austen's posthumous popularity has inspired fan fiction that runs the gamut through numerous genres, but the most concentrated medium has remained the novel. According to Pucci and Thompson in their 2003 survey on the contemporary evolution of Jane Austen's work, at the turn of the 20th century, over one hundred sequels, rewritings, and continuations of her novels had been published.
A mash-up novel is an unauthorised non-canonical work of fiction, often parodical, which combines a well-known pre-existing literature text with another genre. The term was popularized in reference to horror writer Seth Grahame-Smith and his work on the classical novels of Jane Austen.
The following outline is provided as an overview of and topical guide to George R. R. Martin's A Song of Ice and Fire media franchise:
