Copyright is a legal right that protects original creative works. It grants creators exclusive rights over the reproduction and use of their work. The purpose of copyright is to incentivize creative production, preserve the integrity of works, and establish rules for economic exploitation. Copyright applies automatically to original works but expires typically 70 years after the creator's death, allowing works to enter the public domain where they can be used freely. Exceptions and limitations to copyright allow limited use of copyrighted works for purposes like education or criticism.