Senior editor at DC Comics, Peter Tomasi, was the editor of the Batman books in 2006. He was supposed to be the editor of Grant Morrison's Superman story, "All Star Superman", however when that changed and he was exclusively on Batman, he decided to work with Morrison. Tomasi spoke with DC's executive editor, Dan Didio and convinced him to hire Morrison for the main "Batman" book. Morrison had previously worked with the character of Batman in the graphic novel ', where he explored the psyches of Batman and a number of his enemies, and in the storyline, ', where he created a story about the past of Gotham City and Batman himself,