Book excerpt: As the number of countries taxing SSBs increases, the available and emerging empirical evidence indicates that SSB taxation can be an effective lever for promoting healthier diets and improving population health. This guide is designed to support health and finance ministries in the growing number of countries that are exploring the use of SSB taxation to promote healthy diets, advance population health and improve societal welfare. Specifically, this manual is designed to (1) explain key economic concepts related to SSB taxation for public health personnel and SSB tax advocates to aid effective discussions and negotiations with financial officers and (2) provide finance ministry and health ministry officials with appropriate national-level examples in the implementation of SSB excise taxes, along with key considerations and strategies for effective SSB tax policy development, design, implementation and administration.