Creative Commons (CC) licenses are a way (though not the only way) for owners of copyrighted material to, in essence, approve certain types of uses of their work without permission. Creative Commons licensed materials (except those explicitly licensed with a "Public Domain" license) are still copyrighted and the creator of the work still owns that copyright.
The purpose of this licensing is to offer a flexible and efficient mechanism for content creators to allow their materials to be used in certain ways without the burden of the permissions process.
Typically, CC licenses require attribution at a minimum. Copyright holders can choose licenses that allow (or prohibit) commercial uses, declare whether adapting the work is permitted, and to require the user to also use a CC-license on derivative works.
Wanna Work Together? from Creative Commons on Vimeo.
Attribution: Much of the information in this section is adapted from Portland CC Library's Copyright Resources guide and is licensed by Portland Community College under a Creative Commons Attribution 4.0 International License.
When you use the CC License Chooser, you get the embed code that will make the license on your webpage machine readable. This means that search engines, software products, and other technologies can more accurately index and find your CC licensed material(s). Plus, the code includes the CC image logo(s) and a link to the license deed that you have chosen.
<p xmlns:cc="http://creativecommons.org/ns#" xmlns:dct="http://purl.org/dc/terms/"><a property="dct:title" rel="cc:attributionURL" href="https://libguides.pittcc.edu/oer">OER Research Guide</a> by <span property="cc:attributionName">Pitt Community College (Angela Davis, PCC Library)</span> is licensed under <a href="http://creativecommons.org/licenses/by/4.0/?ref=chooser-v1" target="_blank" rel="license noopener noreferrer" style="display:inline-block;">CC BY 4.0<img style="height:22px!important;margin-left:3px;vertical-align:text-bottom;" src="https://mirrors.creativecommons.org/presskit/icons/cc.svg?ref=chooser-v1"><img style="height:22px!important;margin-left:3px;vertical-align:text-bottom;" src="https://mirrors.creativecommons.org/presskit/icons/by.svg?ref=chooser-v1"></a></p>
OER Research Guide by Pitt Community College (Angela Davis, PCC Library) is licensed under CC BY 4.0
OER Research Guide © 2018 by Pitt Community College (Angela Davis, PCC Library) is licensed under CC BY 4.0. To view a copy of this license, visit https://creativecommons.org/licenses/by/4.0/
NOTE: These examples are for teaching purposes only.