Born in 1945 in Milan, where he graduated in architecture from the Polytechnic in 1969.
Editor of the magazines Casabella [1971-76] and MODO [1980-83]. In 1973 he organised the first critical exhibition on radical Italian design for the IDZ [Internationale Design Zentrum] in Berlin. As an author and designer he participated in several exhibitions, including: Assenza Presenza [Bologna 1978], Cinquant'anni di architettura italiana [Milan 1979], La neomerce [Milan-Paris 1985]. In 1983, for the 17th Milan Triennale, he designed and organised the exhibition Le case della Triennale. At the 18th Triennale in 1989, he curated the design section of the exhibition Il futuro delle metropoli. In 2015, he curated and organised the exhibition Una galleria lunga 40 anni at the College of Architects in Milan.
His On-Off lamp for Luceplan is part of the permanent collection of the MoMA in New York. He has designed objects for several companies: Fontana Arte, Cappellini, Kartell, Poltronova, Luceplan, Candle, Zeus-Noto, Artemide and Danese. From 1989 to 2000 he taught at the Istituto Europeo del Design in Milan. He has given courses and seminars in Italy, at the Polytechnic University of Milan and abroad. Since 2002 he has been a professor of Interior Design at the ISIA [Higher Institute for Artistic Industries] in Florence. He lives and works in Milan.