A dressed-up bar chart displays the top 30 most populous countries using data from the United Nations World Population Prospects 2019. Horizontal bars rendered as golden SVG rectangles show each country’s population, with a formatted log-scaled axis converting values to billions. The chart uses React for component structure, D3 scales (scaleBand, scaleLinear) for positioning, and includes native SVG tooltips via the `<title>` element. The right-aligned country labels come from a custom AxisLeft component.