In this free lesson from video2brain's course, Mastering Color Correction in Photoshop, Tim Grey introduces you to the Histogram display, generally thought of as a tool for evaluating tonal information in your photos, but as you'll see in this lesson, it can also be helpful when it comes to color. For more information on this course, please visit http://www.video2brain.com/en/courses/mastering-color-correction-in-photoshop