Graphic codes do not depend on the relation of objects to each other in a world outside the text; these we would call "iconographic". The images of a child looking out of a window or of a boat winding its way down a watercourse belong to such iconographic codes. To be able to read a graphic code we must consider the disposition of objects on the page, the handling of line and colour, we must examine the "presentional process". There are six graphic codes to be introduced in this article: the codes of position, size and diminishing returns, codes of perspective, the codes of the frame and of the right and round, the codes of line and capillarity and the code of colour.