Just six years away from the date set for the achievement of the Sustainable Development Goals established in the 2030 Agenda for Sustainable Development, an unprecedented level of concerted action is called for. All stakeholders will have to strengthen their resolve to find and put in place lasting solutions. Although the Sustainable Development Goals are global in scope, their achievement will hinge on the ability to make their attainment a reality at the subnational, local and territorial levels, including individual towns, cities and regions. The purpose of this manual is to share lessons learned and to support local governments’ efforts to territorialize the 2030 Agenda based on the preparation of voluntary local reviews.