Copyright protection attaches automatically to original works of authorship fixed in a tangible medium of expression. Originality requires that the work was created independently (i.e. not copied from another) and that it embodies a minimum amount of creativity. To be fixed in a tangible medium of expression means that the work can be perceived either directly or by a machine or device such as a computer or projector.
These categories should be viewed broadly. For example, "literary works" includes novels, poetry, compilations, and computer programs. "Pictorial, graphic, and sculptural works" includes images, photographs, paintings, maps, charts, and architectural plans.