Giuseppe Longo is Research Director at the CNRS (The National Center for Scientific Research, France) at the Centre Interdisciplinaire Cavaillès, (République des Savoirs, Collège de France et l’Ecole Normale Supérieure, Paris) and Adjunct Professor at the Department of Integrative Physiology and Pathobiology, Tufts University School of Medicine, Boston Tufts University, Boston. He is a former Professor of Mathematical Logic and, after that, of Computer Science at the University of Pisa. He spent three years in the USA (at Berkeley, the M.I.T., Carnegie Mellon) as a researcher and Visiting Professor, in addition to spending several months visiting Oxford and Utrecht. Longo worked in Mathematical Logic and on various applications of Mathematical Logic to Computer Science. He has been a member of the Academia Europea since 1992. Since 1991, Longo has been editor-in-chief of Mathematical Structures in Computer Science, a leading scientific journal of the Cambridge University Press and (co-)authored more than 100 papers. He is also the author, together with A. Asperti, of Categories, Types and Structures (1991). He recently extended his research interests and work to the Epistemology of Mathematics and Theoretical Biology. Together with F.Bailly, he published Mathematics and the natural sciences: The Physical Singularity of Life (2011), a book that proposes a novel approach to cross-foundational analyses in Mathematics, Physics and Biology. Its consequences for more specific theorization in Biology are developed in a joint book with M. Montévil, Perspectives on Organisms: Biological Time, Symmetries, and Singularities (2013). See http://www.di.ens.fr/users/longo/ for references and recent papers.