There is a new pamphlet/guide to OER published in 2026 by UNESCO and authored by Tel Amiel @tamiel – shared under CC BY-SA 3.0 IGO
Open Educational Resources (OER) are born out of the idea that everyone should have access to quality education and educational resources to support teaching and learning. Most resources you find online and in print are copyright restricted, not open.
OER are like any other educational resource such as textbooks, videos, courses, or lesson plans. There are costs and effort associated with creating and maintaining educational resources, whether they carry an open license or are copyright restricted. But these efforts are mostly made better, more equitable, and sustainable by making your resources open.