In October 2016, experts from RTI International, USAID, the Inter-American Development Bank, and the Children’s Investment Fund Foundation participated in a panel discussion examining how stakeholders in early childhood education, health and nutrition can break down the silos represented by these fields and build an integrated approach to early childhood development. The panel took place following the release of a new Series on early childhood development published in The Lancet which found that more than two in five children in low- and middle-income countries (an estimated 43 percent, or 250 million) are at risk of not reaching their development potential due to extreme poverty and chronic undernutrition. Maureen Black, PhD, distinguished fellow at RTI International, is lead author of the first paper in the Series.