Pierluigi Crescenzi is a professor at the Gran Sasso Science Institute. Before joining GSSI, he has been researcher at the University of L’Aquila, and professor at the University of Rome, Florence, and Paris. He has taught in basically every field of computer science. He is the author of more than 130 scientific publications in the field of algorithm theory and its applications. He is co-author of 5 university textbooks, including 2 in English, and a popular Italian book. He is member of the editorial board of JCSS. He is co-author of the NP optimisation compendium, which is still widely cited. He has been a member of the steering committee of the COST 295 DYNAMO action. His current research is mostly focus on the analysis of complex networks and, more specifically, of temporal networks. He has been the co-developer of several software projects, ranging from algorithm visualisation tools to IP address lookup algorithms, and from computer science education to computer science conference mining. His last software project is WorldDynamics.jl, an open-source framework written in Julia for world dynamics modelling and simulation.