The fair use exception permits the reproduction of a small portion of a copyrighted work without the copyright owner's permission, but only under very limited circumstances.
The purpose is to allow students, teachers, researchers, scholars, reporters and critics the right to refer to a copyrighted work in their own scholarship, teaching, articles and critiques.
There's no one right answer as to what constitutes a "fair use" of a copyrighted work. The answer varies from situation to situation.
The criteria as designated in the law for using copyrighted materials under the fair use exception are governed by four principles.
||The purpose and character of the use.||Is it a commercial or non-commercial
use of the copyrighted work?
|2||The nature of the copyrighted work.||What kind of work is it?|
|3||The "substantiality" of the portion used in relation to the copyrighted work as a whole.||How much is used and what is the relationship of the portion to the entire copyrighted work?|
|4||The effect of the use upon the potential for, or the value of, the copyrighted work.||Will the use reduce the salability of the copyrighted work?|