This cluster contains two Manuals and proceedings of an expert group meeting on a pointed and policy-relevant topic of measuring the impact of family planning on fertility. The formats of these publications are adequate for multiple purposes. They provide detailed and user-friendly guidance in data gathering and processing for experts and decision-makers with limited training in demography. Concurrently, the Manuals and the proceedings present discussions of complex issues which have opened the door for further methodological developments. This cluster is related to the cluster Demographic estimates.