This stylized bar chart displays the top 10 most populous countries as horizontal bars, with the y-axis listing country names and the x-axis showing population in billions. The visualization uses React for component structure and d3.scaleBand and d3.scaleLinear for positioning, with SVG rectangles rendered in a teal color. Population data comes from the United Nations World Population Prospects 2019 dataset, loaded via d3.csv, and the chart includes axis labels, tick marks, and a tooltip showing the formatted population value on each bar.