Textbooks are one of the most important tools to help students to learn, but Cambodia’s textbook supply chain has several weak points. New textbooks typically do not arrive in time for the start of the school year, and schools often receive the wrong quantity of books. The process through which schools report their book needs to the government is complicated and prone to errors. Even if the right books are printed and distributed to the districts, further errors can be created when the books are repacked at the district level to be distributed to schools, which can mean that schools do not end up with the right books. Also, there is little systematic and timely checking of whether the books are actually being used by children in the teaching and learning process. This means that officials lack real-time data about whether books have been lost during the delivery process and or if schools receive the wrong books or in the wrong amounts. The results in education for all children (REACH) trust fund provided a grant to world education to test a results-based approach to incentivizing the textbook supply chain in Cambodia. In the context of the Coronavirus 2019 (COVID-19) pandemic in 2020, the REACH trust fund is also supporting the World Bank’s new READ at home initiative. This initiative will be developed based on the example of the Cambodia pilot and similar pilots in other countries to track the delivery of books to homes rather than schools.