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{{selfref|For Wikipedia policy about copyright issues, see [[Wikipedia:Copyrights]]}}
[[Image:Copyright.png|thumb|170px|right|Copyright symbol]]
{{Intellectual property}}
'''Copyright''' is a set of [[exclusive right]]s that regulate the use of a particular expression of an idea or information.  At its most general, it is literally "the rights to copy" an original creation.  In most cases, these rights are of limited duration. The symbol for copyright is "©", and in some jurisdictions may alternatively be written as either (c) or (C).

Copyright may subsist in a wide range of creative, intellectual, or artistic forms or "works". These include [[poem]]s, [[thesis|theses]], [[drama|plays]], and other [[book|literary works]], [[film|movies]], [[choreography|choreographic works (dances, ballets, etc.)]], [[music|musical compositions]], [[sound recording|audio recordings]], [[painting]]s, [[drawing]]s, [[sculpture]]s, [[photography|photographs]], [[Computer software|software]], [[radio]] and [[television]] [[Broadcasting|broadcasts]] of live and other performances, and, in some [[jurisdictions]], [[industrial design]]s. [[Designs]] or industrial designs may have separate or overlapping laws applied to them in some jurisdictions. Copyright is one of the laws covered by the umbrella term ''[[intellectual property]]''.
 
Copyright law covers only the form or manner in which ideas or information have been manifested, the "form of material expression." It is not designed or intended to cover the actual idea, concepts, facts, styles, or techniques which may be embodied in or represented by the copyright work. For example, the copyright which subsists in relation to a [[Mickey Mouse]] cartoon prohibits unauthorized parties from distributing copies of the cartoon or creating [[derivative work]]s which copy or mimic [[The Walt Disney Company|Disney]]'s particular [[anthropomorphic]] mouse, but does not prohibit the creation of artistic works about anthropomorphic mice in general, so long as they are sufficiently different to not be deemed imitative of the original. In some jurisdictions, copyright law provides scope for satirical or interpretive works which themselves may be copyrighted. Other laws may impose legal restrictions on reproduction or use where copyright does not - such as [[trademark]]s and [[patent]]s.

Copyright laws are standardized through international conventions such as the [[Berne Convention for the Protection of Literary and Artistic Works|Berne Convention]] in some countries and are required by [[international organization]]s such as [[European Union]] or [[World Trade Organization]] from their member states.

== History ==

{{main|History of copyright law}}

Copyright was not invented until after the advent of [[Printing press|the printing press]] and with wider public literacy. As a legal concept, its origins in Britain were from a reaction to printers' monopolies at the beginning of the eighteenth century. [[Charles II of England]] was concerned by the unregulated copying of books and used the [[royal prerogative]] to pass the Licensing Act of 1662, which established a register of licensed books and required a copy to be deposited with the Stationers Company, essentially continuing the licensing of material that had long been in effect. The [[Statute of Anne]] was the first real copyright act, and gave the author rights for a fixed period, after which the copyright expired. Copyright has grown from a legal concept regulating copying rights in the publishing of books and maps to one with a significant effect on nearly every modern industry, covering such items as [[Sound recording and reproduction|sound recordings]], films, photographs, software, and architectural works.

=== The Berne Convention ===

The 1886 [[Berne Convention for the Protection of Literary and Artistic Works|Berne Convention]] first established recognition of copyrights among [[Sovereignty|sovereign nations]], rather than merely bilaterally. Under the Berne Convention, copyrights for [[creative works]] do not have to be asserted or declared, as they are automatically in force at creation: an author need not "register" or "apply for" a copyright in countries adhering to the Berne Convention. As soon as a work is "fixed", that is, written or recorded on some physical medium, its author is automatically entitled to all copyrights in the work, and to any derivative works unless and until the author explicitly disclaims them, or until the copyright expires. The Berne Convention also resulted in foreign authors being treated equivalently to domestic authors, in any country signed onto the Convention.

The UK signed the Berne Convention in 1887 but did not implement large parts of it until 100 years later with the passage of the ''Copyright, Designs and Patents Act of 1988''. The USA did not sign the Berne Convention until 1989.

The regulations of the [[Berne Convention for the Protection of Literary and Artistic Works|Berne Convention]] are incorporated into the [[World Trade Organization]]'s [[Agreement on Trade-Related Aspects of Intellectual Property Rights|TRIPS]] agreement, thus making the Berne Convention practically world-wide.
== Obtaining and enforcing copyright ==

Typically, a work must meet minimal standards of originality in order to qualify for copyright, and the copyright expires after a set period of time (some jurisdictions may allow this to be extended). Different countries impose different tests, although generally the requirements are low; in the [[United Kingdom]] there has to be some 'skill, originality and work' which has gone into it. However, even fairly trivial amounts of these qualities are sufficient for determining whether a particular act of copying constitutes an infringement of the author's original expression.  In [[Australia]] and the United Kingdom it has been held that a single word is insufficient to comprise a copyright work. In the UK, however, single words or a string of words, usually less than eight, can be registered as a "Trade Mark" instead.

In the [[United States]], copyright has been made automatic (in the style of the Berne Convention) since [[March 1]], [[1989]], which has had the effect of making it appear to be more like a property right. Thus, as with some forms of [[personal property]], a copyright need not be granted or obtained through official registration with any government office. Once an idea has been reduced to tangible form, for example by securing it in a fixed medium (such as a drawing, sheet music, photograph, a videotape or a letter), the copyright holder is entitled to enforce his or her exclusive rights. However, while a copyright need not be officially registered for the copyright owner to begin exercising his or her exclusive rights, registration of works (where the laws of that jurisdiction provide for registration) does have benefits; it serves as ''[[prima facie]]'' evidence of a valid copyright and enables the copyright holder to seek [[statutory damages for copyright infringement|statutory damages]] and attorney's fees (whereas in the USA, for instance, registering after an infringement only enables one to receive actual damages and lost profits). The original holder of the copyright may be the employer of the actual author rather than the author himself if the work is a "[[work for hire]]". Again, this principle is widespread; in [[English law]] the ''Copyright Designs and Patents Act'' 1988 provides that where a work in which copyright subsists is made by an employee in the course of that employment, the copyright is automatically owned by the employer which would be a "Work for Hire." 

Copyrights are generally enforced by the holder in a [[Civil law (private law)|civil law]] court, but there are also criminal infringement statutes. Criminal sanctions are generally aimed at serious counterfeiting activity, but are now becoming more commonplace as copyright collectives such as the [[RIAA]] are, more and more, targeting the [[file sharing]] home Internet user. Thus far, however, most such cases against file sharers have been settled out of court for several thousand dollars. (See: [[File sharing and the law]])

=== Copyright notices in the U.S. ===

Prior to 1989, use of a copyright notice — consisting of the letter [[C]] inside of a circle (that is, "©"), the abbreviation "Copr.", or the word "Copyright", followed by the year of the first publication of the work and the name of the copyright holder — was part of United States statutory requirements.<ref>Copyright Act of 1976, {{USPL|94|553}}, 90 Stat. 2541, § 401(a) ([[October 19]], [[1976]])</ref><ref>The Berne Convention Implementation Act of 1988 (BCIA), {{USPL|100|568}}, 102 Stat. 2853, 2857. One of the changes introduced by the BCIA was to section 401, which governs copyright notices on published copies, specifying that notices "'''may''' be placed on" such copies; prior to the BCIA, the statute read that notices "'''shall''' be placed on all" such copies.  An analogous change was made in section 402, dealing with copyright notices on phonorecords.</ref> Several years may be noted in the case of multiple completion dates - e.g., in the case of ongoing editing. The letter C inside of parentheses ("(c)") has ''never'' been an officially recognized designator.{{Fact|date=September 2007}} The proper copyright notice for audio recordings of musical compositions is a "P" inside a circle (that is, "{{unicode|&#x2117;}}"), which stands for phonorecord copyright.

In 1989, the U.S. enacted the Berne Convention Implementation Act, amending the 1976 Copyright Act to conform to most of the provisions of the [[Berne Convention for the Protection of Literary and Artistic Works|Berne Convention]].  As a result, the use of copyright notices has become optional to claim copyright, because the Berne Convention makes copyright automatic.<ref>http://www.copyright.gov/circs/circ03.html</ref> However, notice of copyright (using these marks) does have consequences in terms of allowable damages in an infringement lawsuit in some places.{{Fact|date=September 2007}}

The phrase ''[[All rights reserved]]'' was once a necessary formal notice indicating all [[Copyright#Rights of copyright holder|rights]] granted under existing copyright law are retained by the copyright holder and that legal action may be taken against [[copyright infringement]]. It was provided as a result of the [[Buenos Aires Convention]] of 1910, which required some statement of reservation of rights to grant international coverage in all the countries that were signatory to that convention.  While it is commonplace to see it, this notice is now superfluous, as every country that is a member of the Buenos Aires Convention is also a member of the Berne Convention, which holds a copyright to be valid in all signatory states without any formality of notice. This phrase is sometimes still used even on some documents to which the original author does ''not'' retain all rights granted by copyright law, such as works released under a [[copyleft]] license. It is, however, only a habitual formality and is unlikely to have legal consequences.

Absence of a copyright notice does not mean that the work is not covered by copyright. The creator of an original work instantaneously possesses its copyright when that work is created through "mental labor" and "fixed" in tangible form. Thus, a natural copyright exists from the time a work is invented or created, regardless of whether it has been registered with a particular Copyright Office.

Since all countries have separate copyright laws, there is no such thing as an "international copyright". The Berne Convention, however, makes the copyright automatic in each signatory. Should copyright infringement litigation ensue, registration with the U.S. Copyright Office may affect the outcome.{{Fact|date=September 2007}}

== Exclusive rights ==

Several exclusive rights typically attach to the holder of a copyright:
* to produce copies or reproductions of the work and to sell those copies (including, typically, electronic copies) 
* to import or export the work
* to create [[derivative work]]s (works that adapt the original work)
* to perform or display the work publicly
* to sell or assign these rights to others
* to transmit or display by means of [[digital audio]] transmission ([[XM Satellite Radio]], Sirius)

The phrase "exclusive right" means that only the copyright holder is free to exercise the attendant rights, and others are prohibited using the work without the consent of the copyright holder. Copyright is often called a "negative right", as it serves to prohibit people (e.g. readers, viewers, or listeners, and primarily publishers and would be publishers) from doing something, rather than permitting people (e.g. authors) to do something.  In this way it is similar to the unregistered design right in [[English law]] and [[European law]].  The rights of the copyright holder also permit him/her to ''not'' use or exploit their copyright for its duration.  This means an author can choose to exploit their copyright for some of the duration and then not for the rest, vice versa, or entirely one or the other.

There is however a critique which rejects this assertion as being based on a [[Philosophy of copyright|philosophical interpretation of copyright law]], and is not universally shared. There is also debate on whether copyright should be considered a [[property right]] or a [[moral right]]. Many argue that copyright does not exist merely to restrict third parties from publishing ideas and information, and that defining copyright purely as a negative right is incompatible with the public policy objective of encouraging authors to create new works and enrich the public domain.

The right to adapt a work means to transform the way in which the work is expressed.  Examples include developing a stage play or film script from a novel; translating a short story; and making a new arrangement of a musical work.

==References==
{{reflist}}