The stacked horizontal bar chart is an extension of the horizontal bar chart. The difference is that the data values of the horizontal bar chart are arranged in parallel, while the stacked horizontal bar chart is stacked one by one. It can display the total amount of each variable, as well as the size and proportion of each sub-category included in the variable, so it is very suitable for dealing with the part-whole relationships. For example, the figure below shows the different numbers of child abuse behaviors among the incidents mentioned.