Sean Kleefeld is an independent researcher whose work has been used by the likes Marvel Entertainment, Titan Books and 20th Century Fox. He writes the ongoing “Incidental Iconography” column for The Jack Kirby Collectorand “Kleefeld on Webcomics” column for MTV Geek. He’s also contributed to Alter Ego, Back Issue and Comic Book Resources. Kleefeld’s 2009 book, Comic Book Fanthropology, addresses the questions of who and what comic fans are. He blogs daily at KleefeldOnComics.com.