I have a piece of graphic art I created. The intension or desire if it's popular, is to market it someday on a flag or tee-shirt to make some money off the design. As I understand thus far, a copyright is what I would pursue to protect the work.
If I created more designs for the similar purposes, do I need to get a copyright for each individual piece of work? I've read about a group copyright. But at the present time I don't have a collection of work.
Could I get a group copyright and add work as time goes on? Or does the work have to be already created and exist before including the work in the group.