This example shows a vertical bar chart of country populations using a CSV dataset. It uses D3 v5 with an SVG rendering approach, employing `d3.scaleLinear` for the y-axis and `d3.scaleBand` for the x-axis. The code loads data via `d3.csv`, applies a population multiplier, and renders bars with `d3.selectAll` and `rect` elements, while axes are drawn using `d3.axisLeft` and `d3.axisBottom`.