The document discusses Creative Commons licenses, which are copyright licenses that allow creators to specify how their content can be used by others. There are several types of Creative Commons licenses that differ in whether they allow commercial use, modifications, or require attribution. The licenses provide legal clarity around content sharing while also allowing machine readability. Choosing an appropriate Creative Commons license depends on the creator's preferences around attribution, commercial use, modifications, and sharing alike conditions. National and institutional policies can help standardize licensing approaches for open educational resources.