Better Use Of Color

Color is often mis-used in graphing data. For an excellent introduction to the use of color, see "Practical Use of Color In Charts" on Stephen Few's site. A great introduction. Often we send out charts with color gradients that are horrible. Why? Because we're researchers, not color experts. Well now a very cool tool is available that lets you select the right color gradients. It's called ColorBrewer and is available here.