A stylized bar chart ranks the top 10 most populous countries according to the United Nations World Population Prospects 2019 dataset, loading data via d3.csv. It renders as an SVG using React, mapping country names to a d3.scaleBand y-axis and population values to a d3.scaleLinear x-axis. The marks are rectangular elements with a teal fill and hover tooltips, while axes display tick lines and labels formatted with d3.format. The layout includes margins, a bottom axis label, and a Poppins font.