Working at the interface of computer science and mathematics, research scholars at Inria have spent the last four decades laying the scientific foundations for a new field of knowledge: the digital sciences. In interaction with other scientific disciplines, the digital sciences offer new concepts, languages, methods, and materials that introduce new and surprising ways to teach and learn complex phenomena. Working in project teams, Inria researchers combine basic and applied research in creative ways. The 174 teams, most of which work jointly with major French and international research organizations, involve about 20 researchers each in projects lasting 4–8 years. Inria is France's only public research institution devoted entirely to the digital sciences. Each year it welcomes more than a thousand junior scholars.