Bar charts represent values in the form of horizontal bars; in histograms and bar charts, the bars are aligned vertically. Both charts are used in presentation graphics
and clearly show the differences and ranking of statistical surveys or economic business data. In bar charts
beforehand. The bars themselves can represent a single value - sales, number of employees, page views - or consist of multiple values. For example, the bar for employees may consist of the subgroups temporary workers, trainees, etc.