This example displays a horizontal bar chart of the top 10 most populous countries in 2019, using population data loaded from a CSV file. The visualization is built with React and D3 v5, rendering SVG marks (rectangles) and channels (position and length) to encode the data values. It uses `scaleBand` and `scaleLinear` for axes, along with manual tick rendering and axis labels, all within a React component that fetches data with `csv`.