Self-publishing is the publication of media by its author at their own cost, without the involvement of a publisher. The term usually refers to written media, such as books and magazines, either as an ebook or as a physical copy using print on demand technology. It may also apply to albums, pamphlets, brochures, games, video content, artwork, and zines. Web fiction is also a major medium for self-publishing.

A zine is a small-circulation self-published work of original or appropriated texts and images, usually reproduced via a copy machine. Zines are the product of either a single person or of a very small group, and are popularly photocopied into physical prints for circulation. A fanzine is a non-professional and non-official publication produced by enthusiasts of a particular cultural phenomenon for the pleasure of others who share their interest. The term was coined in an October 1940 science fiction fanzine by Russ Chauvenet and popularized within science fiction fandom, entering the Oxford English Dictionary in 1949.