Piero Gatti, (Turin 1940), Cesare Paolini (Genua 1937-1983) and Franco Teodoro (Turin 1939-2005) had worked together since 1965, following the design in the fields of: architecture, decorating, industrial design, urban design, corporate image and product development, graphic. Their works have been reviewed and mentioned in Italian and foreign magazines, in addition to books on architecture and design. They have taken part in competitions, exhibitions and reviews in Italy and abroad. They designed the "Sacco" seat manufactured by Zanotta(1968/1969), symbol of Italian design, displayed in galleries and museums and awarded worldwide. They have been working for Zanotta since 1969.