When may my work be used without my permission?
In some cases, it is okay to use images without the creator's permission. Based on the right to citation, for example, someone may "quote" a work, i.e. copy all or part of a work in the context of an announcement, review, polemic, scientific dissertation or similar articles. However, there are a variety of conditions that a citation must meet for there to be no copyright violation. Read more about this under citation law.
Another exemption is art in public spaces. Images of works of artwork or buildings permanently displayed in public places may often be published or reproduced without the permission of the creator. It is important that the work is depicted as it appears in its environment. Read more about this under art in public spaces.