The authors apply a global public health perspective to the problem of gun-related violence. Their goal is to identify the causal chain leading to injuries, and the epidemiological approach is both the advantage and limitation of the study. It brings together cross-national data, shows how patterns of use differ among countries, compares alternative interventions, and tests some beliefs about cause and effect. In particular, the study documents the critical role of the US in producing and selling firearms that are used around the world….[t]he data provided is a useful addition to a debate that is far from finished. Recommended General readers, lower-division undergraduates through practitioners.