Explore the second part of a lecture on isoperimetric inequalities in high dimensional convex sets, delivered by Bo'az Klartag from Université de Poitiers. Delve into advanced mathematical concepts as part of an Institut Henri Poincaré school series focusing on Bourgain's slicing problem and the Kannan, Lovasz and Simonovits (KLS) isoperimetric conjecture. Gain insights into complex geometric principles and their applications in high-dimensional spaces during this 51-minute presentation, which forms a crucial component of a comprehensive exploration of cutting-edge mathematical theories.