This example visualizes the top 10 most populous countries as horizontal bars with no axes, using population data from the United Nations World Population Prospects 2019. React state manages the loaded CSV data, while d3’s `scaleBand` and `scaleLinear` position and size the SVG rectangles. The chart intentionally omits ticks and labels, emphasizing raw bar lengths. Data is fetched asynchronously via `d3.csv` and rendered through React components.