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- 116 - CHAPTER 5 or by using an exception or limitation to copyright, such as fair use or fair dealing. If you want to know which CC-licensed works can be remixed with other CC-licensed works, see figure 5.6, which repeats the CC remix chart (figure 4.12) that we studied in chapter 4. In this chart, where there is a check mark at the intersection of two CC-licensed works, you can remix those two works. Where there is a black X, you cannot remix those two CC-licensed works.
 * Example: Many MOOCs allow free reuse of their content, but do not allow copying, revise, remix, or redistribution.
 * “All rights reserved” copyrighted works in closed formats do not allow the public to remix or adapt the work.
 * Example: A blockbuster movie is usually available only on a streaming service that you cannot use or even link to.
 * Creative Commons-licensed works (and other free licenses) are open, but they may have various permissions and restrictions.
 * Example: The online encyclopedia Wikipedia (BY-SA) allows you to reuse its content for commercial purposes, while WikiHow (BY-NC-SA) does not. A Wikipedia article cannot be remixed with a WikiHow article.

MARC Records and Metadata

There are metadata standards for OER that allow searchability, organization, and integration into current content systems at your institution. Metadata can include information such as author, title, subject area, grade level, keywords, and other categorical information.

There are many sources whereby you can easily include open textbooks in your library collection. UnGlue.it has a comprehensive database of Creative Commons ebooks. In 2014 they added 1,897 free ebooks, and of these, 1,076 of them have Creative Commons licenses. Unglue.it has also added librarian tools (https://unglue.it/accounts/edit/marc_config/) to allow users to download and upload customizable MARC (machine-readable cataloging) records. As free, openly licensed resources, OER often live outside of the catalog, and cataloging standards can differ between repositories. You can check out the WorldCat catalog record for OpenStax to see what an OER might look like in the catalog