A bar chart displays the population of seven countries, sorted by country name along the vertical axis and population count on the horizontal axis. The chart uses `d3.scaleBand` for the categorical y-axis and `d3.scaleLinear` for the numeric x-axis, with axes drawn via `d3.axisLeft` and `d3.axisBottom`. Tick labels on the x-axis are formatted with `d3.format` to abbreviate numbers, and grid lines extend across the plot. Data loads from a CSV file, and the title and axis labels are added as SVG text elements.