This example visualizes the top ten countries by 2020 population as a horizontal bar chart, using data loaded from a CSV file. The visualization is rendered as SVG through React components, with D3 v5 utilities (`csv`, `scaleBand`, `scaleLinear`, and `max`) handling data loading and scaling. The bars represent each country’s population, with lengths proportional to values, and a simple loading state displays text until data arrives. The code combines React hooks for state management with D3’s functional approach to create a clear, minimal population comparison.