Batman: Zero Year Reading Order (Batman New 52)
Zero Year is a yearlong crossover event published between June 2013 and July 2014 and written by Scott Snyder and James Tynion IV.
This story takes us back six years in the past and redefines the origin of Batman in The New 52 version of the DC Universe (go to The Batman New 52 Reading Order for more details).
Everything begins with Bruce Wayne’s return to Gotham City. He starts fighting the Red Hood gang. Those events will lead to the birth of the Batman and to a flood in Gotham that will leave him for dead. When he comes back, he has to free the city that has fallen and is now under the control of one of his worst enemies.
What to read before Batman: Zero Year?
Zero Year is a prequel storyline that was published after the Death of the Family storyline (go to Death of the Family Reading Order for more). The story takes place a few years before The Court of Owls.
You can read it here or at another moment before. Some people recommend reading it before The Court of Owls, but I think that being familiar with the style and direction of Snyder’s Batman is better to appreciate this story.