More about
cc licences:
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 license identical to the license that governs your work.
more on
cc licencing .