Simplify the following text for a Grade 8 native English-speaking person.
Original: Copyright infringement , or copyright violation , is the unauthorized use of works covered by copyright law , in a way that violates one of the copyright owner 's exclusive rights , such as the right to reproduce or perform the copyrighted work , or to make derivative works .
Simplified: Copyright laws make it easier for authors to make money by selling their works . Because of copyright , a work can only be copied if the owner of the copyright gives permission .