Now that we know a little about the science behind color, how do we use our knowledge of light and color to organize a visual system that we can use to achieve our artistic goals? Fortunately, much of this organization has been done for us. The easiest way to view color relationships is through a circular diagram called the "color wheel"--a visual organization of color hues that follow a logical order around a circle. Seeing the colors organized in this fashion is helpful for color mixing and choosing color schemes. Many accomplished colorists throughout history, such as Wilhelm Ostwald, Dr. Herbert Ives, Sir Isaac Newton, and Albert H. Munsell, developed their own variations of color charting, but the 12-hue wheel pictured here is the most common model used by artists today. Excerpted from Color Theory: An Essential Guide to Color-From Basic Principles to Practical Applications by Patti Mollica All rights reserved by the original copyright owners. Excerpts are provided for display purposes only and may not be reproduced, reprinted or distributed without the written permission of the publisher.