This bar chart displays the 2010 population for 20 countries, sorted alphabetically by country name. The visualization uses a horizontal layout where bars extend to the right, with population values formatted using D3's `format('.2s')` to abbreviate large numbers. Built with React and D3 v5, the chart renders as an SVG with custom `AxisBottom`, `AxisLeft`, and `Marks` components. Data is loaded from a CSV file using D3's `csv` function, which parses population values and multiplies them by 1000. The chart includes a hover tooltip showing each bar's exact value.