 To build sustainable, strong and resilient societies, we need to be able to access and share knowledge openly. Open Educational Resources allow us to do so. Open Educational Resources, OER, are teaching, learning and research materials in any medium, digital or otherwise, that reside in the public domain or have been released under an open license that permits no cost access, use, adaptation and redistribution by others. An open license respects the intellectual property rights of the copyright owner. It provides permissions granting the public the rights to access, reuse, repurpose, adapt and redistribute educational materials. Open Educational Resources support quality education that is equitable, inclusive, open and participatory.