Copyright means there is permission from someone else to use their work. Copyright is a law which the author of any work has the right to say if it is okay for others to use it. It cannot be copied or shared without the authors permission.
Fair Use means that you can use a certain portion of work without needing a copyright to do so. Fair Use means that is it okay for someone to use someone's work, but only a small amount and for certain reasons.
For more information on Copyright and Fair Use feel free to contact me.
Below are a few websites for more information on Copyright and Fair Use: