A bar chart displays population data for ten countries, encoded as horizontal rectangles whose widths scale with each country’s 2020 population. The visualization implements the margin convention by using a translation to offset an inner group from the SVG’s edges. React manages the rendering state, loading the CSV data via `d3.csv` and applying `scaleBand` for the categorical y-axis and `scaleLinear` for the quantitative x-axis. The chart demonstrates how to structure SVG output using React and D3 v7.