The eye has been one of the most important tools for the gathering of information since the dawn of time; our ancestors were responding to visual signals before they could talk. Once they did talk, they continued to use visual images to send signals, teach, and tell stories. In preliterate societies, visual images are very important means of communication, teaching, or propaganda such as in the case of this image.
So it should not be surprising that we find that there are visual symbols that have been shared over great expanses of time and space. It has been the purpose of this course to increase awareness of the visual signals that are all around us, and that we share with each other and with our past.