Is Copyleft Only For Software?
The GNU GPL states that it “applies to any program or other work which contains a notice placed by the copyright holder saying it may be distributed under the terms of this General Public License,” so this “Program,” then, may not necessarily be a computer software program—any work of any nature that can be copyrighted ...
What can copyleft be applied to?
Typically a copyleft licence will allow a work to be freely copied, distributed or adapted, provided that all copies or modified versions are also freely available under the same licence. The actual word 'copyleft' has no legal meaning in itself, it is simply a play on the word 'copyright'.
P-20: Copyleft :: The UK Copyright Service
What is an example of copyleft?
Copyleft is a term, usually referring to a license, used to indicate that such license requires that redistribution of said work is subject to the same license as the original. Examples of copyleft licenses are the GNU GPL (for software) and the Creative Commons SA (Share Alike) licenses (for works of art).
Copyleft - MDN Web Docs Glossary: Definitions of Web-related terms
Notable copyleft licenses include the GNU General Public License (GPL), originally written by Richard Stallman, which was the first software copyleft license to see extensive use, the Mozilla Public License, the Free Art License and the Creative Commons share-alike license condition, the last two of which being ...
Copyleft - Wikipedia
What is the importance of copyleft? Copyleft provides an incentive for creative people to improve innovations. For example, if someone composes a tune with a copyleft policy, other musicians can make changes so that you get varied and improved versions. The same applies to any other creative piece of work.
Understanding importance of Copyleft | IPTSE