A horizontal bar chart displays population counts for four countries, using green bars to encode values against a linear scale. The chart imports data from a CSV file, applying a multiplier of 1000 to each population figure before rendering. The code uses d3.csv, d3.scaleLinear, d3.scaleBand, d3.axisLeft, and d3.axisBottom to construct the SVG visualization. Axis labels and a title are added manually, while grid lines and tick marks are removed for a cleaner presentation.