This bar chart displays the population of the top 10 most populous countries using 2018 United Nations estimates from data.csv. It shows each country’s population as a horizontal bar, with a linear x-axis and banded y-axis. The example demonstrates D3 v5 axis customization via `axisLeft` and `axisBottom`, including custom tick formatting, labels, and styled tick lines. The visualization uses `scaleLinear`, `scaleBand`, and SVG rendering, with population values converted to thousands from the CSV data.