The Family bookstore in L.A. is having a humdinger of a signing and art show on Tuesday Sept. 22 at 7 PM for the release of the new issue of The Simpsons Treehouse of Horror that some wags have dubbed "Krusty's Ergot" for its lineup of art comics superstar contributors. Signing at the event: Sammy Harkham, Jeffrey Brown (his first L.A. signing, apparently), Jordan Crane, Tim Hensley, and Simpsons overmind Matt Groening. The Family blog has more info on the issue and event, plus sneak peeks at the issue and art show. It's gonna be bigger than BiMonSciFiCon!