This example displays a horizontal bar chart of the top ten most populous countries for 2020, using data loaded from a CSV file via D3’s `csv` utility. The chart is rendered as SVG with React, employing `scaleBand` for the categorical y-axis and `scaleLinear` for the numeric x-axis. The code builds axes, gridlines, and bars through React’s JSX, while D3 utilities handle data parsing and scaling.