This example demonstrates a bar chart of population by country, built using the Vega Lite API within a React application. The chart sorts countries by population in descending order and displays a tooltip with the population value for each bar. The visualization is rendered as an SVG, using the Vega, Vega-Lite, and Vega-Lite API libraries, along with D3 for data loading. The data is fetched from a remote CSV file containing population figures by country.