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Attribution
CC BY
This license lets others distribute, remix, tweak, and build upon your work, even commercially, as long as they credit you for the original creation. This is the most accommodating of licenses offered. Recommended for maximum dissemination and use of licensed materials.
Attribution-ShareAlike
CC BY-SA
This license lets others remix, tweak, and build upon your work even for commercial purposes, as long as they credit you and license their new creations under the identical terms. This license is often compared to “copyleft” free and open source software licenses. All new works based on yours will carry the same license, so any derivatives will also allow commercial use. This is the license used by Wikipedia, and is recommended for materials that would benefit from incorporating content from Wikipedia and similarly licensed projects.
Attribution-NoDerivs
CC BY-ND
This license allows for redistribution, commercial and non-commercial, as long as it is passed along unchanged and in whole, with credit to you.
Attribution-NonCommercial
CC BY-NC
This license lets others remix, tweak, and build upon your work non-commercially, and although their new works must also acknowledge you and be non-commercial, they don’t have to license their derivative works on the same terms.
Attribution-NonCommercial-ShareAlike
CC BY-NC-SA
This license lets others remix, tweak, and build upon your work non-commercially, as long as they credit you and license their new creations under the identical terms.
Attribution-NonCommercial-NoDerivs
CC BY-NC-ND
This license is the most restrictive of our six main licenses, only allowing others to download your works and share them with others as long as they credit you, but they can’t change them in any way or use them commercially.
We also provide tools that work in the “all rights granted” space of the public domain. Our CC0 tool allows licensors to waive all rights and place a work in the public domain, and our Public Domain Mark allows any web user to “mark” a work as being in the public domain.
Types of Licenses
Attribution means:
This license lets others distribute, remix, tweak, and build upon your work, even commercially, as long as they credit you for the original creation. This is the most accommodating of licenses offered. Recommended for maximum dissemination and use of licensed materials.
Noncommercial means:
This license lets others remix, tweak, and build upon your work non-commercially, and although their new works must also acknowledge you and be non-commercial,
No Derivative Works means:
This license allows for redistribution, commercial and non-commercial, as long as it is passed along unchanged and in whole, with credit to you
Share Alike means:
This license lets others remix, tweak, and build upon your work even for commercial purposes, as long as they credit you and license their new creations under the identical terms. This is the license used by Wikipedia, and is recommended for materials that would benefit from incorporating content from Wikipedia and similarly licensed projects.
Adapted from http://creativecommons.org/licenses/ please visit for additional Information
For more resources on copyright, check our copyright research guide
Copyright is a form of protection grounded in the U.S. Constitution and granted by law for original works of authorship fixed in a tangible medium of expression. Copyright covers both published and unpublished works.
"Broadly speaking, fair use is the the copying of copyrighted material done for a limited and "transformative" purposes, such as to critic, comment, or parody and can be done without the permission of the copyright owner, therefore it protects the Fair Use user from copyright infringement." Adapted from Standard University Libraries
Fair Use Evaluator: This tool "helps you better understand how to determine the "fairness" of a use under the U.S. Copyright Code."
Otherwise stated, terms adapted from: http://librarycopyright.net/resources/fairuse/toc.php
More Fair Use Resources:
"The public domain refers to works (i) no longer protected by copyright (that is, where the copyright has expired), and (ii) belonging to categories of works not protected by copyright law." Copyright Clearance Center
Public Domain Slider: This tool lets you know which works are in the public domain by selecting the dates.
This work by Diana Moronta is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
You may reproduce, reuse, or remix any part of it for noncommercial purposes as long as credit is included. We encourage you to license your derivative works under Creative Commons as well to encourage sharing and reuse of educational materials. Note that linked content is covered by its own licenses.