The reign of Seventies nostalgia is finally over - in the design world, at least. It's time to think Eighties - sharp contours, vast open spaces, searingly contrasting colours. Focusing principally on European design from the Eighties, Bonham's latest sale, Divine Design, showcases a flamboyant set of working designs, sketches and drawings by Studio Alchimia, the rebel design collective founded in 1979 by the Milanese architect Alessandro Guerriero. The group began when, in a bid to free up-and-coming designers from the intractability of their industry, Guerriero offered them a space in which they could show their work for free. Studio Alchimia soon rejected traditional notions of function as interest in "aesthetic sensation" took over. They set about beautifying everyday objects - a football, a radio or a motorcycle, for instance - with eccentric colours and quirky adornments. Prices range from pounds 50 to pounds 12,000.
Bonham's, Montpelier Street, Knightsbridge, SW7 (0171-393 3930) 20 May 6pm