Today, the world is facing a learning crisis: While millions of children have entered education systems for the first time, many of them cannot read, write or do basic mathematics, even after several years of primary school.1 This global learning crisis has its roots in children’s earliest years, when failure to invest in quality early childhood education (ECE)results in children starting school already behind in a host of critical skills they need to succeed in primary school.2Investing in the foundations of learning during the child’s early years benefits children,3 families, education systems and societies at large.4 Participation in quality ECE sets in motion a positive learning cycle and is a proven strategy to address the global learning crisis at its roots by closing early learning gaps, strengthening the efficiency of education systems and providing a solid foundation for human capital development and economic grow