This example shows a horizontal bar chart comparing population figures across six countries, with each bar’s length proportional to its population value. The visualization uses React with D3 v6, rendering SVG elements via d3.select, d3.csv, d3.scaleLinear, d3.scaleBand, d3.axisLeft, and d3.axisBottom. The code loads data from a CSV file, multiplies population values by 1,000, then maps countries to the y-axis and scaled populations to the x-axis, with steelblue rectangles and axis labels.