Book excerpt: “Form,” writes the author, “is developed by means of light and shade; without these every object would appear flat.” Originally published in the mid-nineteenth century, this classic approach to three-dimensional drawing was the first book to provide art students with instructions for correctly illustrating perspective outlines of various objects. An art historian noted for her authoritative reference works, Merrifield clearly demonstrates the principles of light and shade by revealing the effects of common daylight, sunshine, and candle or artificial light on geometrical solids. Her simple explanations are accompanied by illustrations of cubes, prisms, pyramids, cylinders, spheres, ovals, and cones. As useful and practical today as it was when first published well over a century ago, Light and Shade provides beginning and advanced art students with valuable insights into effective drawing and sketching.