This interactive scatter plot visualizes the relationship between trading volume and market capitalization for selected cryptocurrencies (BTC, AAVE, XMR, LTC). Built with D3 v6 and SVG, it uses `d3.scaleLinear` for both axes and `d3.scaleOrdinal` with `d3.schemeCategory10` for color encoding. Users select a cryptocurrency via radio buttons, triggering a redraw through `d3.selectAll` and `.remove()`. The plot includes rotated x-axis tick labels and a color-coded legend. Data is loaded via `d3.csv` from a remote dataset, with axes formatted using `d3.format(".2s")`.