Do I need a copyright notice to protect my work (writings, art, music, etc.)?
No, although it is recommended. On March 1, 1989, the U.S. adopted the Berne Convention and eliminated the requirement that a copyright notice be attached to works. Though no longer required, a copyright notice is often beneficial as it reminds content users that the work is protected by copyright law.
Should you elect to utilize a copyright notice, you may do so freely without permission from, or registration with, the U.S. Copyright Office.
The notice for visually perceptible copies should contain all the following three elements: