Giuseppe Bertin is Professor of Physics at the University of Milan, Italy; previously he was in the faculty of the Scuola Normale Superiore, Pisa. He has also held several positions at the Massachusetts Institute of Technology and has been a member of the Kavli Institute for Theoretical Physics, University of California, Santa Barbara (in 2006 and 2009). Professor Bertin is also author of Spiral Structure in Galaxies: A Density Wave Theory with C. C. Lin, and editor of the proceedings of a series of three international workshops on plasmas in the laboratory and in the universe. He is the recipient of the Italian National Academy's Premio del Presidente della Repubblica in Science for 2013.