This horizontal bar chart displays the 2020 population of 30 countries, using lightgreen rectangles where bar length encodes population magnitude. The visualization employs D3.js v7 with modular components for the axes and marks, using a linear scale for population values and a band scale for country names. Data is loaded from a remote CSV file, and the bottom axis formats population values in billions. The chart includes clearly labeled axes for countries and population, with a left margin accommodating full country names.