This bar chart displays the top ten countries by population in 2020, with horizontal bars showing population values. The visualization is built using React components that render SVG elements, with D3 v5 utilities handling data loading via `d3.csv`, scale construction through `scaleBand` and `scaleLinear`, and number formatting. Each bar is a `<rect>` element, and tick marks are generated by `xScale.ticks()` in the `AxisBottom` component.