This example visualizes AMZN stock price and volume with a dual-axis chart. An orange line shows closing prices over time, while semi-transparent steelblue bars represent trading volume on a separate right-hand scale. The visualization uses D3 v7 with SVG rendering, employing `d3.csv` to load stock data, `d3.scaleUtc` for time axes, `d3.scaleLinear` for the two value axes, and `d3.zoom` for interactive panning and zooming. A hover tooltip displays date, price, and volume details for individual data points.