This is a practical public health book - written by public health practitioners for public health practitioners. It introduces learning practitioners to the early phases of approaching a public health issue, details why an issue is important and exactly how it can be analysed and addressed. It deals not only with the technical issues, but crucially with how those technical issues can be implemented in order to improve the health of the population directly, or via one of many important causal pathways (quality of health care design and delivery). It is written by experienced, internationally known practitioners of public health.