Sauerbruch Hutton has redesigned the bookshop at the Haus der Kulturen der Welt (HKW) in Berlin, with reused elements from previous exhibitions. Light grey MDF boards are used for the tables and shelves, and steel-framed recycled polycarbonate sheets are used as movable screens. In contrast to the muted colour of the furniture elements and the architecture, the books and textile ceiling flags provide colour and help define the boundary of the bookstore. Photo © Jan Bitter. Sauerbruch Hutton