Creative Commons is a non-profit corporation dedicated to making it easier for people to share and build upon the work of others, consistent with the rules of copyright.
Creative Commons provide free licences to mark creative work with the freedom the creator wants it to carry, so others can share, remix, use commercially or any combination thereof.
Creative Commons distinguishes between four rights of a copyright holder. The CC website lists and explains these rights:
- Attribution: You let others copy, distribute, display and perform your copyrighted work – and derivative works based upon it – but only if they give credit the way you request.
- Noncommercial: You let others copy, distribute, display and perform your work – and derivative works based upon it – but for noncommercial purposes only.
- No Derivative Works: You let others copy, distribute, display, and perform only verbatim copies of your work, not derivative works based upon it.
- Share Alike: You allow others to distribute derivative works only under a licence identical to the license that governs your work.