This book cover shows excellent figure ground/negative space. The contours formed by the position of the fox serve as the shape of a boy, I'm assuming "Peter." This empty space also creates a wonderful focal point for the book title to nestle into.
✣ STATIONARY ✣ ILLUSTRATION ✣ This is great because the printed folded wrap can be done without a die-cut (just angle-cut the sides on a standard cutter). Die-cut anything is budget death. And it's a beautiful innovative design w/o being over the top.