Through his profound understanding of the physical nature of landscapes and his highly developed artistic sense, John Carlson is able to explain both the whys and the hows of the various aspects of landscape painting. Among the subjects covered are angles and consequent values (an insightful concept necessary for strong overall unity of design), aerial and linear perspective, the painting of trees, the emotional properties of line and mass in composition, light, unity of tone, choice of subject, and memory work. In the beginning chapters, the author tells how to make the best of canvas, palette, colors, brushes, and other materials and gives valuable advice about texture, glazing, varnishing, bleaching, retouching, and framing.