This dashboard visualizes the relationship between market capitalization and revenue for 30 U.S. companies, with each dot representing a single firm. The interface allows switching between five chart versions that explore different encoding channels, from position-only to color and area variations. Built with D3 v7, the visualization uses `d3.csv` to load data from a GitHub gist, `d3.extent` for summary statistics, and SVG rendering for the scatter plot. The code also includes interactive navigation buttons that update the chart's visual encodings.