In comics, a one-shot is a work published as a single stand-alone story, rather than as part of an ongoing series. One-shots date back to the early 19th century, published in newspapers, and today may be in the form of single published comic books, parts of comic magazines/anthologies or published online in websites. In the marketing industry, some one-shots are used as promotion tools that tie in with existing productions, movies, video games or television shows.