After he graduated from the Venice University in 1963, Cittato spent two years working as a designer with La Rinascente in Milan. He moved to the USA in 1965, where he worked for Unimark International, the Center for Advanced Research in Design and the Container Corporation of America. In 1971, Cittato returned to Italy and from 1971–74 he taught visual design at the Corso Superiore di Disegno Industriale and the International University of Art in Venice. He was involved in a wide range of design projects, corporate programmes and signage, which he taught at the University of Urbino from 1978–80. A one-man exhibition was held at the Smithsonian Institute in 1969. Clear colourful compositions were typical of his work. More exhibitions were held in Milan, Montreal and Venice. Samples of his work can be found in the NY MoMA, as well as in museums in Italy and other countries.