1965....       Honorary Trustee of the James Joyce Association. 1972-79:     Secretary General of the IASS/AIS (International Association for Semiotic Studies); 1979-83:     Vice-President of IASS/AIS 1994 -.        Honorary President of the IASS/AIS 1971 -..       Editor of VS-Semiotic Studies. 1991 -      .  Honorary Fellow, Rewley House I (now Kellogg College), Oxford. 1992-93      Member of the International Forum of Unesco 1992 -         Member of the Académie Universelle des Cultures, Paris. 1994 -         Member of the Academy of Sciences of Bologna. 1998 -         Member of the Academia Europea de Yuste 1998 -         Honorary Member of the American Academy of Arts and Letters 2002           Honorary Fellow, St: Anne’s College, Oxford. 2003……   Member of the Council of Advisors of the Bibliotheca Alexandrina Member of the International Academy of Philosophy of Art. Member of the editorial board of Semiotica, Poetics Today, Degrès, Structuralist Review, Text, Communication, Problemi dell'informazione, Word & Images, etc.