ABC3D: Pop-up Alphabet Book  

From the lenticular cover that changes with the angle of your hands, all the way to the Z, ABC3D is as much a work of art as it is a pop-up book. Each of the 26 dimensional letters that move and change before your eyes is a treat. C turns into D with a snap. M stands at attention. X becomes Y with a flick of the wrist. And then there?s U? Boldly conceived and brilliantly executed with a striking black, red, and white palette, this is a book that readers and art lovers of all ages will treasure for years to come.

Video here

http://blog.wired.com/geekdad/2008/03/abc3d-an-awesom.html