This bar chart displays country population values as horizontal bars, with each bar’s length proportional to its numeric population figure. The visualization uses D3 v6 (d3.scaleLinear, d3.scaleBand, d3.axisLeft, and d3.axisBottom) to compute scales and render axes, while appending SVG rectangles for each data row. Data is loaded from a CSV file via d3.csv and the population field is multiplied by 1000 during preprocessing.