There has been data ("Batman: The Killing Joke: Alan Moore, Brian Bolland, DC Comics, Batman, Barbara Gordon, Joker (comics), Arkham Asylum, Gotham City, Stand- up comedy") available for this ISBN from the data sources that books-by-isbn.com uses, but not on the latest request on Mon Oct 7 07:20:26 2019, so the data displayed here has been removed .