Literary technique, also called literary device. Novels and short stories do not simply come from nowhere. Usually the author employs some general literary technique as a framework for artistic work.
False documents, fiction written in the form of, or about, apparently real, but actually fake documents. Examples include Robert Graves' I, Claudius, a fictional autobiography of the Roman emperor Claudius; and H.P. Lovecraft's Necronomicon, a fictional book of evil that appeared frequently in horror fiction and film, written by both Lovecraft and his admirers.
Flashback, general term for altering time sequences, taking characters back to the beginning of the tale, for instance.
Frame tale, or a story within a story, where a main story is used to organise a series of shorter stories
Historical novel, story set amidst historical events, pioneered by Sir Walter Scott in his novels of Scottish history. Protagonists may be fictional or historical personages, or a combination.
Magic realism, a form particularly popular in Latin American but not limited to that region, in which events are described realistically, but in a magical haze of strange local customs and beliefs. Gabriel García Márquez is a notable author in the style.
Narrative, fiction written as if it were related to the reader by a single participant or observer.
Omniscient narrator, particular form of narrative in which the narrator sees and knows all
Pastiche, using forms and styles of another author, generally as an affectionate tribute, such as the many stories featuring Sherlock Holmes not written by Arthur Conan Doyle.
Picaresque novel, episodic recounting of the adventures of a rogue (Spanish picaro) on the road, such as Tom Jones or Huckleberry Finn.
Roman a clef, a "novel with a key", that is, whose characters and plot are related to real-life happenings