Diagramming software is used to produce graphical charts, graphs, flowcharts, and other business graphics. Most titles include simple shape drawing tools, templates, and symbol libraries. Perhaps the best known diagramming application is Microsoft’s Visio (pronounced VIZ-ee-oh), but that doesn’t mean to say it’s the best solution for your company’s needs—it’s also expensive. Don’t lose faith—there are lots of products which probably offer all the diagramming tools you need at the fraction of the price. Some are even free.