This example displays a horizontal bar chart of the top ten countries by population in 2020, using data loaded from a CSV file. The visualization is built with React and D3 v5, rendered as an SVG. The code uses D3 utilities like `csv` for data loading, `scaleBand` for the y-axis, `scaleLinear` for the x-axis, and `max` to compute the domain. Axis ticks and grid lines are generated from the scales, with bars drawn as SVG rectangles.