A horizontal bar chart displays the population of twenty countries in 2020, with bars sorted by country name and scaled linearly along the x-axis. The visualization uses React components to render SVG elements, with d3.scaleBand and d3.scaleLinear handling the axes. D3's csv loader fetches the dataset from a GitHub raw URL, multiplies the 2010 value by 1000 to represent population, and formats tick labels using d3.format. Light green bars include native SVG tooltips showing the formatted population value.