Giovanni Gallavotti, emeritus, has been fellow at IHES (Paris, 1966-1968) with David Ruelle and post doc at Rockefeller University (New York, 1968-1970) with Mark Kac. He has been, since 1972, full professor in various universities (Napoli, Roma2 and Roma1). He has been long term visitor at IHES, IAS, Nijmegen, Princeton and Rutgers University. His primary research focused subsequently on theoretical and historical aspects of Equilibrium Statistical Mechanics, Quantum field theory, Low temperature Fermi systems, Nonequilibrium and, currently, concentrates on mathematical problems on Fluid mechanics. Recipient of several awards and prizes (Presidente della Repubblica prize, Boltzmann medal, Henri Poincare' prize).