Clustered Bar Chart

A clustered bar chart displays more than one data series in clustered horizontal columns. Each data series shares the same axis labels, so horizontal bars are grouped by category.  Clustered bars allow the direct comparison of multiple series in a given category, but it's more difficult for the human eye to compare the same data series across categories. Like clustered column charts, clustered bar charts become visually complex as the number of categories or data series increase. They work best in situations where data points are limited.