While copyright holders rights are exclusive, there are some exceptions built in to copyright law that allow works to be used without permission of the copyright holder in very specific conditions. The five major exceptions that are used in the academic environment are:
The specific situations in which each of these exceptions applies are outlined below. For works in copyright, unless one of these exceptions applies to your situation, you need permission to copy, distribute, or display the work. Note that there is no general exception for educational use.