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This is a human-readable summary of the Terms of Use.
Disclaimer: This summary is not a part of the Terms of Use and is not a legal document. It is simply a handy reference for understanding the full terms. Think of it as the user-friendly interface to the legal language of our Terms of Use.

Part of our mission is to:

  • Empower and Engage people around the world to collect and develop educational content and either publish it under a free license or dedicate it to the public domain.
  • Disseminate this content effectively and globally, free of charge.


You are free to:

  • Read and Print our presentations and other media free of charge.
  • Share and Reuse our presentations and other media under free and open licenses.
  • Contribute To and Edit our various sites or Projects.


Under the following conditions:

  • Responsibility – You take responsibility for your edits (since we only host your content).
  • Civility – You support a civil environment and do not harass other users.
  • Lawful Behavior – You do not violate copyright or other laws.
  • No Harm – You do not harm our technology infrastructure.
  • Terms of Use and Policies – You adhere to the below Terms of Use and to the applicable community policies when you visit our sites or participate in our communities.


With the understanding that:

  • This service may contain translations powered by Google. Google disclaims all warranties related to the translations, expressed or implied, including any warranties of accuracy, reliability, and any implied warranties of merchantability, fitness for a particular purpose and noninfringement.
  • You License Freely Your Contributions – you generally must license your contributions and edits to our sites or Projects under a free and open license (unless your contribution is in the public domain).
  • No Professional Advice – the content of presentations and other projects is for informational purposes only and does not constitute professional advice.

Text is adopted from Wikipedia terms of use and is available under the Creative Commons Attribution/Share-Alike License.