This example displays the top 10 most populous countries as ranked bars, with no axes or labels, using a minimal bar chart layout. It loads United Nations World Population Prospects 2019 data via `d3.csv`, then sorts and slices the first ten rows. React state management (`useState`, `useEffect`) handles the asynchronous data fetch, while `d3.scaleBand` and `d3.scaleLinear` map countries and population values to SVG rectangles. The visualization renders in SVG, with bar widths proportional to 2020 population estimates.