Copyright Registration confers upon its owner sole rights to copy or reproduce the work or grant permission to another to do so. The applies to literary (books, scripts, even software) and audio-visual (music, photographs, movies) works. Business entities often copyright instruction manuals, product literature and user guides. Copyright is usually owned by the creator of the work, but may also be owned by the employer of its creator or the person who has commissioned the work (unless there is an agreement to the contrary in either case). Copyrights are also transferrable.