Doujinshi (同人誌) are Japanese works in manga or novel form that are not created for or by the professional market; that is, they are produced by amateurs. Many but not all doujinshi are fancomics, and sometimes the term is used as a synonym for "fancomic in a manga style".
Doujinshi are similar to, or an example of, fanzines, though they have developed independently and have distinct styles. Western doujinshi fandom notably uses different terminology which is mostly derived from Japanese. Creating doujinshi/fanzines is also a vastly more prevalent fan activity in Japan than in the West.
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