The cuboid is the original shape of many well-known architectural forms. And exactly these skyscrapers - brutalist concrete blocks and now iconic prefabricated buildings - are the templates for these note blocks. Thousands of blank notes, non-adhesive, glued in a block with a photo-realistic color cut.

How did it all begin? Publisher Oliver Seltmann is standing at a bus stop in Hamburg-Mundsburg. In front of him are the three well-known Mundsburg towers from 1973. He takes a picture of them. When he later looks at the pictures, the shape reminds him of something: The idea of high-rise blocks was born.