This bar chart displays the population of nine countries, using horizontally oriented bars where length encodes the population value for each nation. The visualization uses D3 v5 with SVG rendering, employing `d3.scaleLinear` for the x-axis and `d3.scaleBand` for the categorical y-axis. Data is loaded from a CSV file via `d3.csv`, and the population values are multiplied by 1,000 during preprocessing before being passed to the rendering function.