From the 1709 Blog, a post dated 2013, discussing IP protection for magicians' tricks and illusions. Some new material here. The author also runs through Teller's lawsuit against Bakardy, the Robert Rice case, and the Think-a-Drink case. A nice overview, although it's not limited just to the possibility (or not) of copyright protection for magicians' work, even though the blog itself is a copyright blog, and the post is labeled "Copyright In Tricks: Could It Be Magic?" The name of the blog, by the way, comes from the year that the Statute of Anne created the first copyright law.