This example demonstrates an interactive network graph built with D3.js, visualizing three nodes and their connections from CSV files. The force-directed layout simulates physical forces—links act as springs, many-body repulsion separates nodes, and a centering force pulls them toward the middle. The graph renders as an SVG, with blue circles for nodes and gray lines for edges, and reads `nodes.csv` and `links.csv` as input. The simulation runs using `d3.forceSimulation`, `d3.forceLink`, `d3.forceManyBody`, and `d3.forceCenter` to iteratively update positions.