This bar chart displays population estimates for 30 countries in 2020, organized alphabetically along the vertical axis with horizontal bar lengths encoding population values. Built with React and D3 v5, it uses `scaleBand` for the categorical y-axis, `scaleLinear` for the quantitative x-axis, and SVG `rect` elements for the bars. The data comes from a remote CSV file loaded via `d3.csv`, axis ticks are generated with custom React components, and numbers are formatted using `d3.format`.