We live in an age of images, in which photography and photoshop, CGI and advertising, surround and enfold us in an inescapable cascade of pictures and fragments of pictures, sometimes to the extent of seeming to create a whole artificial world. The elderly are often dependent on the TV that serves as a companion and tranquillizer, the young live their lives through the computer screen on their phone or laptop. The word "icon" now signifies for most...
