This just in! The most complete book you'll ever see about Art Spiegelman's Maus, surely one of the most important graphic novels of all time. MetaMaus (Pantheon), by Spiegelman, explores the book, the history behind the book and how the authors life informed the work. It comes with a DVD which includes a digital copy of Maus and an archive of audio interviews, historical documents and Spiegelman's notes and sketches.
For a little background information on the book try this audio interview with Spiegelman: see here. Incidentally, there's a new printing of the hardcover edition of Maus, also in store now.