https://pages.uoregon.edu/lipshitz/teach/minerva/index.html Surfaces and the Fourth Dimension Here is a tentative plan for the Minerva Mini-Course at Princeton in Fall 2025. This page will be updated as the plan evolves. The goal of the lectures is to introduce some recent techniques in low-dimensional topology, and some famous old theorems and less famous new ones they can be used to prove. Hugo en-us