This example shows a stacked bar chart of population estimates for the top 10 countries, using data from the UN Population Estimates CSV. The chart breaks down each country's total population into three simulated series (Urban, Suburban, Rural) represented by colored stacks, with a legend and rotated x-axis labels. It uses d3.scaleBand and d3.scaleLinear to position bars, d3.stack for stacking, and d3.axisBottom/axisLeft for axes. The visualization follows a unidirectional data flow pattern via d3-rosetta, enabling interactive bar selection with click handlers.