It's the marriage of Batman and Catwoman! The wedding of the century is commemorated here in Batman/Catwoman- The Wedding Album, a special collector's item hardcover in designed packaging!
Tom King is a comic book writer and novelist, best known for his work at DC Comics including Batman, Mister Miracle, Grayson and Omega Men. He often relies on his experience as an ex-CIA agent and experiences during the recent conflicts in the Middle East in his writing, especially apparent in Grayson (alongside co-writer Tim Seeley), Omega Men and The Sheriff of Babylon, published under the Vertigo imprint.
"A terrific way to cap off Tom King's first year's worth of Batman stories." --IGN