Book excerpt: The main contents are key findings and messages regarding the relationship between contraceptive use and fertility, for 195 countries or areas of the world. These highlights will draw mainly from World Population Prospects 2019, and model-based estimates and projections of family planning indicators 2019. Policy-related implications of and responses to trends in family planning and fertility will be integrated throughout the text. In particular, these issues are of relevance for contextualizing Sustainable Development Goals 3.7.1. and 3.7.2. and the achievement of the 2030 Agenda.