(1. "Principles of Color Design" 2. "Principles of Color Design" 3. "Mastering the Basics of Color Matching in Seven Days" 4. "The Complete Guide to Color Design in Graphic Design" 5. "Photography Composition and Color Design" 6. "Think Like an Artist III : Betty's Color VII, "Color Book for Everyone - Design and Color Basics" VIII, "Color Psychology in Design" IX, "Colourology" XI, "Color Perception" XI, Color and Light XI 2. The character of color 13. "The Art of Color")