This stylized in-process bar chart displays the top 10 most populous countries for 2020, using horizontal bars with a clean, minimal aesthetic. The chart renders as SVG through React components, with D3’s `scaleBand` and `scaleLinear` mapping countries to populations. Axis components generate ticks and labels, while `Marks` renders rectangles with tooltips. Population values are formatted using D3’s `format` with SI prefixes, converting billions to “B”. Data comes from the United Nations World Population Prospects 2019, loaded via `d3.csv` and filtered to the top ten entries.