Do you need a release for a photo of someone you took in public? How about photos of buildings? Does it make a difference if the subject was paid to be in the picture? You can't answer these questions without more information. As the photographer, you need to understand your buyer's concerns in order to make savvy decisions about how you market your photos and to whom. Here's how to make money from all your photos, whether or not they have releases, by understanding the business aspects of the law.