A big barrier to lifelong learning can be the cost of resources. There are worldwide initiatives to change this, though, and it’s helpful to know how to use these resources legally. One such arrangement is Creative Commons, considered to be the global standard for open licences. These were written by legal experts around the world and dedicated to the public domain. They enable teaching and learning resources to be made available in the public domain. This is usually in their digital form under an open licence and without cost other than the cost of access to the internet. Users of the resources may use, adapt and redistribute them with no or few restrictions.
https://theconversation.com/how-creative-commons-works-and-why-it-enables-access-to-knowledge-125895
