Escher

Do you know who Escher is?
He was a graphic artist and was famous for his impossible structures.
I've seen a lot of them, but when I look at one, I always found something different and surprising!
There's a new pop-up book of his work, it's called M.C. Escher. It has some of the pictures in 3D, and you can experiment the impossible structures for real!
Take a look! :)