Book excerpt: This comparative study provides an overview of the textbook production chain, starting with its origins in the curriculum, and suggests ways in which policymakers can make improvements at every point in the chain. With evidence from a range of countries, mainly in Asia, the study is intended as a resource for policymakers and as a reference and benchmark for education systems. Although the study focuses on textbooks, which are the priority for governments and teachers and represent the greatest item of expenditure on teaching and learning materials, it also includes other teaching and learning materials including digital resources.