Fiction is the form of any narrative that deals, in part or in whole, with information or events that are not real, but rather, imaginary—that is, invented by the author. Although the term fiction refers in particular to written stories such as novels and short stories, it may also refer to the theatre (including opera and ballet), film, television, poetry and song. Fiction contrasts with non-fiction, which deals exclusively with factual (or, at least, assumed factual) events, descriptions, observations, etc.