Globally 617 million – or six out of ten – children and adolescents are unable to read a simple sentence or handle a basic mathematics calculation, according to data from the UNESCO Institute for Statistics (UIS). To address the global learning crisis, robust monitoring is needed to track whether children and adults are gaining the skills they need to thrive in today’s world. This video presents the tools developed by the UIS to measure learning and how to use the data to improve learning outcomes.