The first known picture of a human was taken in Paris in 1838 by Louis Daguerre. It wasn’t intentional; the man receiving a shoe shine (in the bottom left corner of the photo to the right) was the only person in the frame long enough to be captured. Many early photographs were of static objects like buildings and landscapes. These were easier to capture given the long exposure times required and would have been a more interesting subject matter for the public, many of whom would only see different corners of the world through images. Fast forward almost two hundred years. Nearly two billion people now have a camera in their pocket, many of whom take pictures of inane objects, including themselves, every day. Not because it’s important to document a critical moment in their personal or cultural history, but because they want to show friends what their outfit or hair or new...