ABC3D pop-up book [1] is an amazing little gem, produced by Marion Bataille. It's a game of letters, the whole alphabet will pop up whilst flicking through the pages and some of transform into other letters. The I becomes a K, the K an I depending on which strap you draw. I t plays with sweet little effects. like mirror and transparent paper to get different letters from the same “base”. Check out the video, a loveley presentation of the book with very fun music [2], which surely describes it better than my words...
Funny story behind the commercialisation is, the apparently unwanted marketing campaign. A youtube video showing the book has been circulating. More on this story at publishers weekly.

buyable for .00

1. Written & illustrated by Marion Bataille |5.75 x 7.5 | 36 pages | Ages All | Roaring Brook Press | Published in 2008 | ISBN 9781596434257

2. Roll On Mississipi by the 1930s trio The Boswell Sisters