Process tracing is a research method designed to learn how things work in real-world cases. Increasingly used across the social sciences and in applied policy evaluation, process tracing involves unpacking causal processes as they play out within cases and tracing them empirically, enabling within-case causal inferences about the processes that link causes and outcomes together. The aim of this course is to provide participants with a good working understanding of the core elements of process tracing as a distinct social science case study method, enabling you to utilize it in your own research either as a stand-alone method or in combination with other methods in multi-method designs such as experiments or small/medium-n comparisons.