A chart is a graphic representation of worksheet data.
Charts can make data interesting, attractive, and easy to read and evaluate.
They can also help you analyze and compare data. When you create a chart based on a worksheet selection, Microsoft Excel uses the values from the worksheet and presents them in the chart as data points, which are represented by bars, lines, columns, slices, dots, and other shapes. These shapes are referred to as data markers. Groups of data points, or data markers, originating from single worksheet rows or columns are grouped in data series. Each data series is then distinguished by a unique color or pattern, or both.