Time - in its happening, in the way it marks and corrodes things, offering the need and the hope of creating new spaces in which to live, new cycles to investigate, new times to measure - is the protagonist in the work of Valentini, providing a vision of utopia, of ceaseless research, of design, of the art of doing. Valentini’s exhibition activity has been intense, with personal exhibitions in private galleries and museums both in Italy and abroad (Boston, Stockholm, Hamburg, Cologne, New York, Aspen, Tokyo, Munich, Regensburg, Paris, Washington). A vast anthology of his work is under preparation at Palazzo Magnani in Reggio Emilia.