The Creative Commons Attribution 3.0 Unported (CC-BY-3.0) is a permissive license that allows for the use, sharing, and adaptation of the material for any purpose, including commercial use, as long as proper attribution is given to the original creator.
Note: This license does not affect elements in the public domain or uses permitted by applicable exceptions or limitations. No warranties are provided with this license.
NOTE: This is not legal advice. This is only a summary of the license for educational purposes.