This social network graph visualizes connections among nine individuals, with nodes sized and colored by their degree centrality—larger, darker blue circles indicate more connections. The network uses curved links to show relationships, and users can drag any node to reposition it while the force-directed layout recalculates. Built with D3 v5, the example uses `d3.forceSimulation`, `d3.forceLink`, `d3.forceManyBody`, and `d3.forceCenter` to compute node positions, while SVG paths and circles render the graph. Node fill colors derive from `d3.interpolateBlues`, and drag behavior is implemented via `d3.drag`.