Serge Berthier received his PhD from the University Pierre et Marie Curie in 1986. He first became a professor of physics at the Université Pascal Paoli, Corte (France) where he spent 7 years. In 1987, he joined the University Paris Diderot where he created a new master dedicated to the optical properties of solids. He was director of the CNRS GDR "Color and materials with visual effects", visiting professor at the University Faculty Notre Dame de la Paix in Namur (Belgium). He is currently a member of the UNESCO-UNISA Chair in Nanotechnology in Cape Town (South Africa). After theoretical work on the optical properties of disordered media, he turned to the study, characterization and modeling of natural photonic structures, found for example in butterfly wing scales, beetle elytra, bird feathers, diatoms...considered as models for bio-inspired devices, including solar absorbers, molecule detectors, anti-counterfeiting devices for banknotes, cosmetic pigments, LEDs... He is actively involved in the development of bio-inspiration in France through CEBIOS (Center of Excellence in Bio-Inspiration of Senlis). He has published more than 200 articles and reviews, 17 chapters of collective works, a book (in French) on the optical properties of inhomogeneous media, 4 books (1 translated into English) on photonic structures and physical colors of insects, a book on natural nanostructures and their applications and an essay on bio-inspiration. He is currently working on a book on Light-Insect interactions.