This bar chart displays the population of the top 10 most populous countries using 2018 estimates from the United Nations World Population Prospects. The chart uses D3 v7’s `scaleLinear` and `scaleBand` for axes, with a customized `axisBottom` that formats tick labels (e.g., converting G to B) and removes domain lines. Left axis labels are simplified by deleting ticks. The SVG rendering includes a title and axis labels, with styling applied via CSS classes.