This example shows a horizontal bar chart of the top 10 countries by 2020 population, as loaded from a CSV file. The React component manages the data state, while D3 utilities such as `scaleBand`, `scaleLinear`, and `d3.csv` handle data parsing and scaling. Axes are drawn manually using `.ticks()` and SVG elements, with both grid lines and labels rendered through React’s JSX syntax. The chart uses `max` to determine the domain and maps values from data to pixel coordinates via D3’s scale functions.