Artistic nudes were often usually allusions to goddesses and nymphs. The advent of photography triggered a new wave of nudity art cult. Beauty criteria and moral principles vary in different periods of time, so many images of this genre understandably raised controversy. Nude photography should be distinguished from erotic photography though: objects in nude photography are not necessarily sexual alluring or erotic. And one of the challenges of this genre is to reach the balance between revealing and concealing and to avoid making a purely provocative photo.