This bar chart displays the population of eight countries in 2020, with countries on the y-axis and population on the x-axis. The visualization uses D3.js v5 to render an SVG, employing a linear scale for population and a band scale for countries. The code customizes the x-axis tick format with a `format` function and removes the y-axis domain and tick lines. Data is loaded from a CSV file, with population values multiplied by 1000. Styling is applied via an external stylesheet.