Batman Chronicles of the Dark Knight 4 hardcover, illustrated books

Batman aficionado Matt Manning gives a unique history of the Dark Knight in this deluxe box set of hardcover books, including:

Bat-Signal: Lighting the Dark Knight's Sky
Shades of Black: The Many Costumes of Batman
The Batman Villains: The Worst Gotham City Has to Offer
The Batmobile: Under the Hood of the Most Famous Car in Comics

Each book is hardcover, 48 pages, and fully illustrated with full-color artwork throughout, and they come packaged in a slipcase.