Copyright protects intellectual creations in all fields of science, art and literature. Article 1 of the Copyright Law includes a non-exhaustive list of possible intellectual works protected by copyright. These include, among others, literary and artistic works, music, architectural works and software.
Copyright protects intellectual expressions, but not ideas. For example, the contents of a book in terms of sentences and other literary expressions are protected by copyright, but the creative idea underlying the book as a whole is not.
Copyright results from the creation of an intellectual work. Registration is not necessary for copyright to exist, although it is necessary for the exercise of some rights by local authors. Upon creation of a protected work, copyright belongs to the original author or authors, who then may transfer their right, by contract or by the operation of certain legal rules.
Copyright includes economic and moral rights. Economic rights consist, basically, in the exclusive right to use and exploit the protected work. The Copyright Law lists some of the elements of this exclusive right, such as the right to reproduce the relevant work, to market copies, to prepare derivative works or to have the work performed publicly.
Moral rights include the so call "integrity right" – that is, the right to preserve the text, title and other contents of the work, even if property rights on such work have been assigned; the "paternity right," the author’s right to be named and identified as such together with the work; the "publication right," the right to decide whether the right will be published; and the "alteration right," the right to modify the work, even after it has been published. Moral rights belong to the author and they are generally non-assignable.