The shape of the visual world: a tactile basis for drawing, contour, gesture, mass and volume. The appearance of the visual world: the order of appearance, surface texture, pictorial depth cues, freehand perspective, light and dark. Beyond appearance: beyond limitations, gallery of instances. Conventions of construction drawing: drawing and design process, projective systems, orthographic projection, paraline views, perspective projection, shadows in isometric projection, shadows in orthographic projection.