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Most open texts can be adapted to fit your specific course and assignment needs.
Open texts can be updated or supplemented periodically to keep up with new developments in the field.
If your textbook is online, you can start using it from the first day of class: no need to provide extra time for students to buy a copy!
Instructors may wish to download a book and make it available through Canvas to ensure that a link to an online version does not break during the semester.
Free textbook alternatives, just like conventionally published textbooks, vary in quality. The directories listed here each have a mechanism for reviewing textbooks to be included.
The UNT Libraries have non-circulating print copies of some of the textbooks from OpenStax available for inspection by faculty members considering adopting them.
Please contact John Martin for more information.
If you're ready to create a textbook and make it free to read online and free to download, there are a couple of options available specifically for UNT faculty:
Contact John.Martin@unt.edu to learn more about either of these opportunities.
Note that if you decided to use material that you authored in your own classroom, you'll need to follow the procedure for getting authorization to do so.
Here are some other resources that could be helpful: