This example shows a horizontal bar chart of the top 10 countries by population, using React to render SVG elements and D3 for data processing and scales. The visualization uses the `UN_Population_2019` dataset, loaded via `d3.csv`, with a linear scale for population values and a band scale for country names. The code includes separate React components for the axes and marks, with D3’s `scaleBand` and `scaleLinear` functions, demonstrating a clean separation of data handling and UI rendering.