This example shows a horizontal bar chart of the top 10 most populous countries in 2020, with bars colored teal and labeled with population values in billions. The visualization is rendered as SVG using React components, with D3 v6 handling the data loading and scales. The `csv` function fetches UN population data, `scaleBand` and `scaleLinear` position the bars, and the `format` function converts tick labels to abbreviated notation.