This issue has variants.
Copyright © 2011 DC Comics.
Cover is an homage to a cover by Frank Quitely.
Letters from readers - David Napier II, Matt Wirka and Sean Cunningham.
Preview of cover to Batman and Robin #24.
House ads for Batman: Arkham Asylum #[nn], Batman: The Long Halloween #[nn] and Batman: Dark Victory #[nn].
Ian Sattler talks about the Batman: Arkham City five issue mini-series.