This book presents the current state of Open Educational Resources (OER) within the countries covered by the China's Belt and Road Initiative. The authors describe eight aspects of OER development in their countries: infrastructure, policy, resources, open license, curriculum and teaching methodology, outcome, stakeholders and impact. This book also conducts a comparative study between those countries to identify the OER gaps in the Belt and Road countries. It then offers valuable insights and recommendations for several stakeholders, including policy makers and educators, wishing to integrate open educational resources into educational processes, as well as for those involved in inter-regional open educational resources cooperation.