Passage: Dōjinshi (同人誌, often transliterated doujinshi) is the Japanese term for self-published works, usually magazines, manga or novels. Dōjinshi are often the work of amateurs, though some professional artists participate as a way to publish material outside the regular industry. Dōjinshi are part of a wider category of dōjin including art collections, anime and games. Groups of dōjinshi artists refer to themselves as a sākuru (サークル, circle). A number of such groups actually consist of a single artist: they are sometimes called kojin sākuru (個人サークル, personal circles).

Question: What is a sakuru?
dōjinshi artists