A social network graph visualizes connections among nine named individuals, with nodes and links displayed in an animated SVG layout. The graph uses force-directed positioning via `d3.layout.force` from D3 v4, with node positions updated on each tick. Circles represent people, labeled with their names, while link thickness reflects connection weight. Hovering over a node triggers a yellow tooltip showing the person's name, implemented with mouseover and mousemove events. Data comes from a local `graph.json` file, and the visualization supports click-and-drag node repositioning.