The “Mathematical Summer in Paris” summer school, July 5-9, 2021, will bring together young people who are passionate about mathematics and allow them to discover some of its many facets. Lectures by famous mathematicians will cover a wide range of topics. There will also be problem-solving activities. If you are between 16 and 20 years of age, or between two years before and two years after your high school degree, and if you love mathematics, then this school is for you!