This bar chart displays the five most populated countries for 2015, with country on the x-axis and population on the y-axis, sorted by population. Built with Vega-Lite API, the visualization loads CSV data from a GitHub gist via D3’s `csv` function. The chart uses a bar mark, disables zero-scaling on both axes for readability, and applies a custom config to style axis labels and titles. Vega-Tooltip provides interactive hover details, with the entire chart rendered as SVG.