# CC-BY Attribution Requirement

The teaching materials on this site are licensed under a
[Creative Commons Attribution 3.0 License](http://creativecommons.org/licenses/by/3.0/).

As stated in the license:
> Attribution — You must attribute the work in the manner specified by the author or licensor (but not
> in any way that suggests that they endorse you or your use of the work).

For any use of the materials we require a prominently placed link to <http://teach.github.com>.
