This bar chart displays the populations of the top 10 most populous countries from a 2018 United Nations estimate. It uses D3 v5 to load CSV data, scale to a linear x-axis and banded y-axis, and render SVG rectangles for bars. The code specifically leverages `d3.csv`, `scaleLinear`, `scaleBand`, `axisLeft`, and `axisBottom`, with population values multiplied by 1000 for display.