The sales were propelled in large part by DC Comics’ month-long “Futures End” event in which DC Comics–The New 52 flashed forward five years. Each Futures End book featured a standard 2-D cover and a “3-D Motion” cover that showcased both the current and future state of the character or team. The move drew in both regular readers and collector.
For individual books taking the #3 slot was Batman: Futures End #1 followed by Harley Quinn: Futures End #1 taking #4.
The #1 book, according to Diamond is Batman: Death of the Family Book & Joker Mask Set– this seminal Batman trade paperback graphic novel is paired with a replica hand-painted vinyl latex mask of Batman’s greatest foe.