is the Japanese term for self-published works, usually magazines, manga or novels. Dojinshi are often the work of amateurs, though some professional artists participate as a way to publish material outside the regular industry. The term dojinshi is derived from and . Dojinshi are part of a wider category of dojin including, but not limited to, art collections, anime, hentai and games. Groups of dojinshi artists refer to themselves as a . A number of such groups actually consist of a single artist: they are sometimes called .