This guide encourages you to consider adopting and/or writing open access texts. Relevant facts include these:
Source: Perry, M. J. (2012, December 24.) The college textbook bubble and how the open educational resources movement is going up against the textbook cartel [blog post]. Retrieved fromhttp://www.aei-ideas.org/2012/12/the-college-textbook-bubble-and-how-the-open-educational-resources-movement-is-going-up-against-the-textbook-cartel/
An Open Access Textbook is an instructional textbook publication in digital form, consisting of text, images, or both, readable on computers or other electronic devices, such as e-readers or tablets, that is made freely available through a host or online organizational service. Open Access Textbooks may have certain copyright restrictions, but these restrictions normally do not limit dissemination, repurposing, creating derivative works and use for educational purposes.
Although rapidly evolving, textbooks in electronic form are available in three dominant models: