This interactive bar chart displays population data for ten countries, sourced from a CSV file, using horizontal bars to encode each country's population value. Built with React and D3.js v7, the visualization renders entirely as SVG elements, with the `AxisBottom`, `AxisLeft`, and `Marks` components constructing the tick marks, axis labels, and rectangular bars. The chart uses D3's `scaleBand` for the categorical country axis and `scaleLinear` for the numeric population axis, while React's `useState` and `useEffect` hooks manage asynchronous data loading.