This example presents a pie chart of U.S. states and their populations in millions, sourced from a CSV file hosted on GitHub. It uses d3.pie and d3.arc to generate the chart, with d3.scaleOrdinal assigning colors to each slice. The visualization includes value labels on each section and a legend with colored rectangles and text, all rendered as SVG. Population values and state names are formatted and displayed using d3.format.