Visual Allusions: Pictures of Perception

In this book a leading researcher and artist explores how we see pictures and how they can communicate messages to us, both directly and indirectly by making allusions to objects in space or to stored images in our minds. Originally published in 1990, Dr Wade provides fascinating examples of pictures that communicate hidden messages, either by implying something else, or by a shape or portrait which is carried covertly within another design. He analyses image processing stages in vision, de...