Copyright 

Copyright does not indicate ownership, but instead provides protection for authors or creators of original works. Copyright is a law that is protected by the Federal Government. Some examples of the types of work protected by copyright include, but are not limited to: books, photographs, poetry, software, music, plays, songs, novels and other literary works, audio recordings, and even architecture. 

Fair Use

Fair use is based on the belief that the public is entitled to freely use portions of copyrighted materials for purposes of commentary and criticism. The fair use privilege is perhaps the most significant limitation on a copyright owner's exclusive rights, because another author may make limited use of the original author's work without asking permission. Certain uses of copyrighted material for purposes such as criticism, comment, news reporting, teaching (including multiple copies for classroom use), scholarship, or research, is not an infringement of copyright.