Copyright

Copyright is one form of intellectual-property law. It applies to creative expression in many forms, including literary works, music, films, photographs, visual art, choreography, architecture, maps and computer programs. A key distinction is between an expressed work and the idea behind it: copyright generally protects the former, not ideas, procedures or methods as such. The exact tests for protection and the treatment of particular works depend on the law that applies.

In the United States, for example, the Copyright Office describes protection for original works of authorship once they are fixed in a sufficiently lasting form, such as writing or a recording. That is a description of U.S. law, not a universal rule for every legal system.

Copyright laws commonly give rights holders control over certain uses of a work. Depending on the jurisdiction and type of work, these may include making copies, distributing them, performing or communicating a work to the public, translating it, or adapting it into another form. Rights holders can permit uses through licences or other agreements; some rights may also be transferred. Rules for employees, commissioned works and joint authorship vary by law and contract.

Many copyright systems also recognize moral rights, which concern the author’s personal connection to a work. Widely recognized examples include claiming authorship and objecting to certain changes that could harm an author’s honor or reputation. The scope and duration of moral rights differ among countries.

Copyright is primarily administered through national laws, but treaties create shared rules for cross-border protection. The Berne Convention for the Protection of Literary and Artistic Works, adopted in 1886, is a central international agreement. Its principles include national treatment—giving works from other member countries protection comparable to that given to domestic works—and protection that is not conditional on registration formalities. It also establishes minimum standards for covered rights and protection periods, with specified exceptions.

These standards do not make copyright law identical everywhere. National rules can differ on the length of protection, registration procedures, ownership, remedies and permitted uses. For example, the Berne Convention states a general minimum term of the author’s life plus 50 years, subject to exceptions; individual countries may provide longer terms.

Copyright does not reserve every possible use to the rights holder. National laws provide limitations and exceptions that may permit some uses without individual authorization, sometimes with conditions or compensation. The scope differs by country and can include such areas as quotation, teaching, research, libraries or reporting on current events. A rule described as fair use in one legal system should not be assumed to apply in the same way elsewhere.

Copyright is limited in time. When protection ends, a work may enter the public domain and can generally be used without copyright permission, although other legal restrictions may still apply. Works that were never protected by copyright may also be in the public domain. Because terms and exceptions vary by jurisdiction and work type, checking the applicable national law is important.

Copying and distributing creative works became easier as printing, recording, broadcasting and digital networks developed. Copyright law therefore operates alongside systems for licensing, collective rights management and enforcement, while its limitations and exceptions help preserve uses that legislatures permit. Digital circulation also raises practical questions about how national rules apply when a work, user and service are in different countries.

Copyright is often discussed as a balance between enabling creators and other rights holders to control or earn from uses of works, and allowing the public to access, reuse and build on culture and knowledge. Treaties supply common principles, but the balance is implemented through different national laws and is subject to ongoing debate.