To copyright register a work in the United States you have to send three things in the same envelope or package.
Register your book, manuscript, online work, pamphlet, poetry, report, test, automated database, computer program, or other text.
Register your pictorial, graphic, or sculptural work, including 2-dimensional and 3-dimensional work of fine, graphic, and applied art. Also, register architectural work
Register your musical work, dramatic work, script, pantomime, choreography, motion picture, or other audiovisual work.
Register your recording of music, drama, or a lecture.
Register your periodical, newspaper, magazine, or other similar work.
Register your mask work. (This protection relates to integrated circuits on a semiconductor chip.)
Make sure that your copyright registration application is formatted in the right way.
A “derivative work,” is a work that is based on one or more already existing works and is copyrightable if it includes what the copyright law calls an “original work of authorship.”
If information in the basic registration is incorrect or incomplete, supplementary registration corrects an error in a copyright registration or amplifies the information given in a registration.
