A horizontal bar chart displays the 2020 population estimates for thirty countries, ranked by value. Built with React and D3 v5, it maps country names to the y-axis and population counts to the x-axis. The visualization uses D3's `scaleBand` and `scaleLinear` for scales, formats axis ticks with `format('.2s')`, and renders SVG rectangles with hover tooltips. Data is loaded from a remote CSV file via D3's `csv` function.