Copyright in a work arises upon the creation of the work by the author of the work. Moral rights and economic rights constitute the content of copyright.
The moral rights of an author are inseparable from the author’s person and non-transferable. The economic rights of an author are transferable as single rights or a set of rights for a charge or free of charge.
Usually a licence agreement is concluded for the usage of work by other persons. The author or right holder is the licensor and the user of the work is the licensee. See also Copyright Act Chapter VII
A Creative Commons license is a public copyright license that enables the free distribution of an otherwise copyrighted work, which is used when an author wants to give other people the right to share, use, and build upon a work that they have created.
CC BY- Crediting the author of the original creation
CC BY-SA- Crediting the author, all new works based will carry the same license
CC BY-ND- Crediting the author, it is allowed to reuse the work for any purpose, including commercially; however, it cannot be shared with others in adapted form
CC BY-NC- Crediting the author, the new works have to be non-commercial, they don’t have to be licensed on the same terms
CC BY-NC-SA- Crediting the author, new creations licensed under the identical terms
CC BY-NC-ND- Crediting the author, allows to download works and share them with others, it is not allowed to change them in any way or use them commercially
National Library Publisher Portal enables right holders to use the latest version Creative Commons license 4.0
See also about Creative Commons on Wikipedia.