Giulio Casati is a renowned theoretical physicist celebrated for his pioneering contributions to classical and quantum chaos, nonlinear dynamics, complex systems, and statistical physics. Casati earned his Master's degree from the University of Milan in 1968, followed by a postdoctoral fellowship at CCR Euratom–Ispra (Italy) from 1968 to 1971. He subsequently worked as a research assistant at the Georgia Institute of Technology (USA) from 1971 to 1972. He served as an associate professor at the University of Milan from 1973 to 1987 before being promoted to full professor of theoretical physics in 1987. In 1998, Casati played a pivotal role in establishing a new university in Como, Italy, where he also served as the Assistant Rector. From 2002 onwards, he held a teaching position at the National University of Singapore. In 2014, he officially retired from the University of Insubria, Italy, and currently serves as a honorary chair of the Center for Nonlinear and Complex Systems. Casati is best known for his discovery of the phenomenon of dynamical quantum localization, which underscored the significance of chaos in quantum mechanics. His collaborative work with Boris Chirikov, Joseph Ford, and Felix Izrailev is regarded as seminal in the field. He has also made groundbreaking contributions to energy transport in nonlinear lattices, proposing concepts such as thermal rectifiers and thermal transistors, and theoretically demonstrating the one-way mirror for light. Casati has received numerous accolades, including the "F. Somaini" Physics Prize (1991), the Enrico Fermi Prize (2008), and the International Physics Prize of the Italian National Academy of Sciences (2010). He is a member of the European Academy of Sciences and the European Academy of Sciences and Arts, with over 300 published research papers to his credit.