We took a look at stacked bars in Chapter 1, Creating Your First Visualizations and Dashboard where we noted one significant drawback: it is difficult to compare values across categories for any bar other than the bottom-most bar (for vertical bars) or left-most bar (for horizontal bars). The other bar segments have different starting points, so lengths are difficult to compare.
In this case, however, we are using stacked bars to visually understand the makeup of the whole. We are less concerned with visually comparing across categories.
Say a bank manager wants to understand the makeup of her lending portfolios. She might start with a visualization similar to the following screenshot:
This gives a decent view of the makeup ...
