This bar chart displays the population of the top 10 most populous countries using 2018 estimates from the United Nations World Population Prospects. The visualization emphasizes axis customization, building on a basic bar chart example. It uses d3.scaleLinear for the x-axis, d3.scaleBand for the y-axis, and d3.csv to load the data. Each bar’s width is proportional to population, with a margin applied via an SVG group element, and the chart is rendered as SVG.