This bar chart displays the population of the top ten most populous countries, based on 2018 estimates from the World Population Prospects 2017. The visualization uses an SVG-rendered layout with horizontal bars, where each country’s population is encoded by bar length. The code employs D3 v7’s `scaleLinear`, `scaleBand`, `axisLeft`, and `axisBottom` to position and label the bars, and it loads data from a CSV file using `d3.csv`. Bars are styled with a steelblue fill, and the chart includes margins and axes for clarity.