Influenced by the condition of young children within its own country and by the pattern of international evidence about the value of Early Childhood Education and Development (ECED), the government of Indonesia has implemented policies and programs that prioritize the early years of children's lives. The first critical step was taken in 2001, when a new directorate dedicated to early childhood was established within the Ministry of Education and Culture. The second critical step was taken when early childhood education was included in a succession of key policy documents-the National Education System Law No. 20 in 2003 and the Ministry of Education and Culture's Strategic Plan (Rencana Strategis or Renstra) in 2004. ECED services are privately provided in multiple formats intended to cater to distinct age groups, and several different government ministries regulate the services. These arrangements underscore the continuing challenges in coordinating services and ensuring high quality across service providers. This book uses Indonesian data to answer five questions with significance for research, policy, and practice within and beyond Indonesia: (1) shat does global evidence tell us about the importance of ECED, and what policies and programs has Indonesia implemented to promote ECED?; (2) what is the pattern of development among young children in poor villages in Indonesia, and how is that development linked with their families' characteristics and the ECED services typically available to them?; (3) what were the processes and challenges of implementing a community-driven ECED project across 50 poor districts in Indonesia?; (4) what can be learned from the short-term results of a randomized evaluation of the project's impact on childrens development?; and (5) what insights can be derived from this body of research to inform future policies and practices in Indonesia and beyond? With support from the World Bank and other development partners, the government has provided new early childhood services in 6,000 poor communities across 50 districts in the country. The lessons from this experience are focused in this book.