- Painting in layers involves applying paint either from light to dark or dark to light. Monochromatic color schemes create strong moods. - In art, light represents emotion. Paintings use lighting techniques like backlighting, spotlighting, and chiaroscuro to convey emotion and draw attention to certain elements. Dramatic lighting was pioneered by artists like Caravaggio and Rembrandt and later adopted in film. - Artists use value studies in black and white to work out compositions, focusing on the contrast between light and dark areas. Light can have different qualities like directional, glowing, or supernatural depending on the intended effect.