A request for the artist of a post.
Do not use this tag if there is a source available, such as the artist's homepage, blog, Pixiv, etc. Read Help:Artists and create a new artist tag yourself, or ask for help in topic #8199: Artist tagging help.
It might be possible to find the artist with the help of a Reverse Image Search engine (see Help:Image Source).
Also use this tag for anonymous artists outside of image boards.