My understanding is that tricks aren't copywritable, but performances are. So magicians have sometimes successfully sued each-other over copying not just a tri

My understanding is that tricks aren't copywritable, but performances are. So magicians have sometimes successfully sued each-other over copying not just a trick but their delivery of said trick. That was the justification for the Penn and Teller lawsuit mentioned in the article But I think the issue with the site discussed in the article is mainly just copyrighted material:, books, videos and the like.