A horizontal bar chart displays the populations of the top ten most populous countries as of a 2018 United Nations estimate. Steelblue bars are arranged in descending order along a categorical y-axis, with a linear x-axis measuring population in thousands. The visualization is built using D3 v5, leveraging its `csv`, `scaleBand`, `scaleLinear`, `axisLeft`, and `axisBottom` APIs to parse the data and project it into SVG.