How do we find causes? Is there some method by which we can discover that one sort of thing is causally connected to another? How good is our causal knowledge? ‘Finding causes: where are they?’ considers these questions about the epistemology of causation. Statistical methods are considered as a way of uncovering causal connections, including randomized controlled trials and Judea Pearl's causal graphs. Experimental methods, intervention, Bayesian networks, frequentism, and propensity theory are also discussed. Finally, the symptomatic approach is presented – the idea of looking for the things that are reliable symptoms of causation, although what those symptoms are will depend on what one takes causation to be: one's philosophical view.