To be protected under the U.S. Copyright law, a work must be original and fixed in a tangible form of expression. It does not, however, have to be registered with the US Copyright Office, and it can include anything published OR unpublished. There are several broad categories for works that can be copyrighted:

	literary works		choreographic works
	musical works		film or motion pictures
	sound recordings		dramatic works
	architectural works		pictorial, graphic and sculptural works
	software programs		digital media including email and web pages