We now know that high quality early care and education (ECE) helps prepare children, particularly those most at risk for poor educational outcomes, for success in school, careers, and the community. Because it contributes to the preparedness and productivity of tomorrow's workforce, ECE is crucial to our country's long term economic health and prosperity. Society's perception of early care and education has also broadened. It is now understood that truly effective ECE is a continuum of services and supports, adapted to the specific needs of families and communities, that begins with pre- and post-natal home visiting, progresses through screenings to identify health and developmental challenges in their earliest stages, interventions to solve problems early, high quality child care for infants and toddlers and pre-K for three's and four's. ECE culminates when a child enters the K-12 system ready to learn and thrive. Many analyses have demonstrated the economic importance of child care and pre-K. The research presented here improves upon previous efforts by assessing the economic importance of the full ECE continuum: home visiting, early intervention, quality child care, and pre-K. (author abstract)