The aim of this handbook is to help IFC client companies and the wider private sector operating in emerging markets to think strategically about how they can support community investment programs that are successful, sustainable, and consistent with their own business objectives. The handbook draws heavily on the lessons and practical experiences of IFC, its client companies, and other organizations focused on the private sector in emerging markets. It also draws specifically on the knowledge and insights of IFC social development specialists and community investment practitioners inside companies or working with companies. When taken as a whole, these insights and good practice approaches point toward a new, more strategic business model for community investment.