This example presents a vertical bar chart of the top 10 countries by population for 2020, sourced from a UN Population CSV file. The visualization shows each country's population as a bar with rotated, angled labels on the x-axis. Built with React and D3 version 6, the chart separates axes and bar marks into individual components, using `d3.csv` for data loading, `d3.scaleBand` and `d3.scaleLinear` for scaling, and rendering as SVG elements. The layout adapts to the browser window’s dimensions.