Copyright
Copyright is a legal right, existing globally in many countries, that grants the creator of an original work exclusive rights to determine and decide whether, and under what conditions, this original work may be used by others. This is usually only for a limited time. The exclusive rights are not absolute but limited by limitations and exceptions to copyright law, including fair use. A major limitation on copyright on ideas is that copyright protects only the original expression of ideas, and not the underlying ideas themselves.