This bar chart displays the populations of 30 countries in 2020, ordered along a vertical band scale with horizontal bars extending from a linear population scale. The visualization is built with React and rendered as SVG using d3.v5 utilities including `scaleBand`, `scaleLinear`, and `format` for tick labels. Data is loaded asynchronously from a CSV file via d3's `csv` function. Light green bars include native SVG tooltips showing the formatted population value, while blue axis ticks and a labeled x-axis highlight the quantitative scale.