Restrictive copyrights can limit how likely reading resources are to be used, shared or repurposed, which significantly diminishes the potential impact of the materials.  Donors and international organizations are increasingly investing in open educational resources, as they are interested in ensuring that educational materials reach the greatest possible number of learners, and that broad access to those materials is not compromised at the conclusion of programs.  Restrictive copyrights can limit how likely reading resources are to be used, shared or repurposed, which significantly diminishes the potential impact of the materials.  Donors and international organizations are increasingly investing in open educational resources, as they are interested in ensuring that educational materials reach the greatest possible number of learners, and that broad access to those materials is not compromised at the conclusion of programs.