Art theft.
It’s a major problem in the science fiction and fantasy art communities–and not just for the artists. It’s also a problem for those who may be looking for artwork they can use for their fandom projects, be it a website, a self-published book, a fanzine, etc. And the problem lies in how one makes sure that they really have the rights to the image they wish to use, when there are a lot of people out there selling art they claim to be rights-free/copyright-free when that is not in fact the case.
I see it reported almost weekly at SciFiFantasyHorrorSpace_ArtShows (wiki), a major mailing list for artists who work (both professionally and at the hobbyist level) in the Science Fiction & Fantasy illustration and fine arts fields.
This post was submitted by fanhistory.