Why register with US Copyright? and How is US Copyright Registered different from US Copyright Protected?
Having your material officially registered with the U.S. Copyright office allows you to take legal action to recover a monetary value if someone uses your work illegally.
Any material (pictures, text, information, quote, map, song, illustration, etc.) is immediately and automatically US Copyright protected as soon as you fix the work in a tangible form. Registering a copyright with the U.S. Copyright Office creates a public record of the basic information of your work, which will give you legitimate ownership over it.