A design bookcase with sleek, simple lines, crafted by Vico Magistretti after lengthy analysis and interpretation of the elements that make up the classic bookcase with sides and shelves. An icon of modern design it is also an authentic structural invention in which the diagonal braces become loadbearing elements that support the shelves, allowing the side pieces to be eliminated entirely. it comes in goose-beak orange or grey, custom colors for the Cassina PRO collection.