Batman: The Killing Joke Deluxe : DC Black Label Edition

According to the grinning engine of madness and mayhem known as the Joker, that's all that separates the sane from the psychotic. Freed once again from the confines of Arkham Asylum, he's out to prove his deranged point. And he's going to use Gotham City's top cop, Commissioner Jim Gordon, and his brilliant and beautiful daughter Barbara to do it.