This example shows the top 10 most populous countries as a series of horizontal bars with no axes or labels, using a deliberately minimal design. The bars are rendered as SVG rectangles whose widths encode each country’s 2020 population, sorted from largest to smallest. The code loads CSV data from the United Nations World Population Prospects 2019 via D3’s `csv` function, then uses `scaleBand` for the y-axis positions and `scaleLinear` for bar widths. React’s `useState` and `useEffect` hooks manage the asynchronous data loading, while the bars are mapped directly from the fetched array.