Facts on copyright

• With the exception of a small number of countries which still require notices to be on works, this requirement is generally optional except for works which were originally created before the particular country became a member of the Berne Convention (the members of which are collectively known as the Berne Union).
• Copyright may subsist in a wide range of creative or artistic forms or "works". These include poems, plays, and other literary works, movies, choreographic works (dances, ballets, etc.), musical compositions, audio recordings, paintings, drawings, sculptures, photographs, software, radio and television broadcasts of live and other performances, and in some jurisdictions industrial designs.
• The first-sale doctrine is known as exhaustion of rights in other countries and is a principle which applies to other intellectual property rights. In addition, copyright, in most cases, does not prohibit one from acts such as modifying, defacing, or destroying his or her own legitimately obtained copies of copyrighted works, so long as duplication is not involved. However, in countries that implement moral rights, a copyright holder can in some cases successfully prevent the mutilation or destruction of a work that is publicly visible.

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