The Piegato One, a flat-pack design from German designer Matthias Ries, arrives by mail as a 39-inch-by-26-inch sheet of laser-cut powder-coated steel. Following simple instructions, you can fold the sheet into a three-shelf bookcase in a matter of minutes then attach it to a wall with just a few screws. Photo 4 of 5 in Creative, High-Design Bookshelves by Jaime Gillin

Creative, High-Design Bookshelves

4 of 5

The Piegato One, a flat-pack design from German designer Matthias Ries, arrives by mail as a 39-inch-by-26-inch sheet of laser-cut powder-coated steel. Following simple instructions, you can fold the sheet into a three-shelf bookcase in a matter of minutes then attach it to a wall with just a few screws.