I love the sobriety of the steel stool prototype by Noon studio, created according to their philosophy of using honest materials and simplicity of execution.
The steel stool consists of only 2 elements; a metal sheet supported by a wooden t-frame. Not only do the materials give the stool a cool character, they also make the stool is very robust and durable.
With several stools you can also easily assemble a unique shelving storage for books.