I think a portrait is a picture of a person or a group of people. Its main goal is to show what that person is like—their personality, mood, or even their story. While a simple snapshot just shows what someone looks like, a good portrait tries to show you something more about who they are. Yousuf Karsh’s photo of Einstein has become one of the most classic shots ever. In the photo, Einstein’s facial expression demonstrates a figure of wisdom. He is looking up at something high behind the camera, which offers this portrait photo more content than the appearance of Einstein.