This is the deluxe, oversized hardcover.
From the publisher:
J. Scott Campbell is renowned for his gorgeous art and stunningly realized covers. This collection (available in a standard size prestige format comic book as well as in a deluxe, oversized hardcover) features 64 pages crammed full of Campbell's Danger Girl covers and pin-ups. As an added bonus, several notable "guest stars" are included in this collection, providing their own beautifully executed version of the Danger Girl team: Adam Hughes, Travis Charest, Joe Madureira, Arthur Adams, Joe Quesada, David Mack, and more. A fine addition to any fan of Danger Girl and the art of J. Scott Campbell!