This bar chart displays the top 10 most populous countries based on 2018 estimates from the United Nations World Population Prospects. It uses D3 v5 with an SVG rendering, employing `scaleLinear` and `scaleBand` for axes, and `axisBottom` with a custom tick formatter that converts billions to "B" labels. The chart also removes default axis lines and adds a title and axis label. The data is loaded via `csv` from a local file, with population values scaled by 1000.