The early years of a child's life are crucial for their development. Falling behind early can mean never catching up. How can countries ensure lasting benefits from early childhood education and care? In this episode of Top Class, Stephanie Jones, the Gerald S. Lesser Professor in Early Child Development at Harvard University, and Professor Henrik Zachrisson from Centre for Research and Equality in Education at Oslo University, discuss with OECD Editor Duncan Crawford ideas to ensure that all young children get lasting benefits from early education.