Copyright and legal re-use.
Authentic materials are print, video, and audio materials students encounter in their daily lives, such as change-of-address forms, job applications, menus, voice mail messages, radio programs, and videos. Authentic materials are not created specifically to be used in the classroom, but they make excellent learning tools for students precisely because they are authentic.
With Creative Commons (CC) licenses, creators can tell the world that they’re happy for their work to be copied, shared, or even remixed. When a creator releases their work under a CC license, you know what you can and can’t do with the work. As a result, you can freely copy, share, and sometimes modify and remix CC material without having to worry about copyright, as long as you follow the license.
My own author's rights. Section 106 of the Copyright Act states that only the owner of a copyright has the authority to use the work in one of six ways (examples of each provided as bullet points).
Fair use is a legal doctrine that says you can reuse copyright-protected material under certain circumstances without getting permission from the copyright owner.
Permission to use Google Images
Fair use is a US legal doctrine that permits limited use of copyrighted material without acquiring permission from the rights holders. It is similar to the fair dealing doctrines used in some countries outside the United States. Examples of fair use include commentary, search engines, criticism, parody, news reporting, research, and scholarship. Fair use provides for the legal use of copyrighted material in another's work but, because it is a legal principle, it may still be subject to legal debate.