Book excerpt: In this innovative guide, master art instructor William Maughan demonstrates how to create a realistic human likeness by using the classic and highly accurate modeling technique of chiaroscuro (Italian for “light and dark”) developed by Leonardo da Vinci during the High Renaissance. Maughan first introduces readers to the basics of this centuries-old technique, showing how to analyze form, light, and shadow; use dark pencil, white pencil, and toned paper to create a full range of values; use the elements of design to enhance a likeness; and capture a sitter’s gestures and proportions. He then demonstrates, step by step, how to draw each facial feature, develop visual awareness, and render the head in color with soft pastels.