OpenIntro LaTeX, code, and PDFs are released under a Creative Commons BY-SA 3.0 license unless noted in the Exceptions. Any materials reposted online must include a visible link to an appropriate OpenIntro page.

Some files are downloaded in a zip directory and include a Read Me file. Adhering to the guidelines in this file ensures the attribution component of the license is fulfilled. Derivative works should also be clearly licensed under the Creative Commons BY-SA 3.0 license, e.g. by linking to the CC license, so that others may continue to benefit from sharing.

Please note that a derivative work cannot be branded or titled in a way that suggests the derivative work is endorsed by OpenIntro. If you would like for a derivative work to branded as an OpenIntro resource (e.g. if the derivative is a translation), please contact us.

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Some files are subject to an alternative license, e.g. student projects. Such materials are clearly labeled on the webpage leading to the corresponding resource.

Some materials, such as lecture slides, may contain images that are used under an alternative license or under fair use.

Website and branding elements, such as the OpenIntro logo and website design, are also exceptions.

Have questions? Contact us.