This visualization shows a network graph of friendships between people, with nine nodes connected by eleven directed links. Each node is a person, and every link represents a "Friend with" relationship, with an arrow marker indicating direction. Built with D3 v6, the example uses `d3.forceSimulation` with link distance, charge, collision, and center forces to lay out the nodes. Nodes and links are rendered as SVG circles and lines, with labels placed in the center of each circle. Dragging is supported via `d3.drag`, and hovering highlights a node. Data comes from a local `data.json` file.