A horizontal bar chart displays the top ten countries by 2020 population, loaded from a CSV file using d3.csv and sorted descending. The React-based example uses d3.scaleBand and d3.scaleLinear to position bars within a margin convention, with the chart rendered as SVG rectangles. The visualization demonstrates loading external data with React hooks (useState, useEffect) and reusing legacy face-drawing components (BackgroundCircle, Eyes, PieArc) that showcase D3 shape generators like d3.arc and SVG gradients.