The DUO Bookshelf is one of the latest furniture pieces designed by Brooklyn-based designer, Ana Linares. It presents itself as two combined minimalist wall shelves made of powder-coated steel. The design is great example of how to get a maximum functionality without a lot of material. The bookshelf consists of a few bends that hold books and give it an illusion of lightness. It is available in black, silver and bright blue. The bookshelf is already available for $160.