This visualization shows the top 10 countries by population for 2020 as a horizontal bar chart, with country names on the y-axis and population along the x-axis. Loading data via d3.csv from a UN population CSV, it uses React components to render SVG rects, with scales built from d3.scaleBand and d3.scaleLinear. Axis ticks and labels are generated manually with React JSX, mimicking D3’s axis pattern without d3.axisBottom or d3.axisLeft.