This example demonstrates how to load and parse CSV data using D3.js, displaying a summary of the loaded dataset in a large text element. It fetches the classic Iris dataset from a GitHub gist via `d3.csv`, then reports the file size in kilobytes, row count, and column count. The visualization also includes commented-out alternative code using the Fetch API with `async/await` and `d3.csvParse`, highlighting two approaches for handling CSV data in D3 v7 within a minimal HTML page.