This example demonstrates a simple D3.js data-loading and parsing workflow. It fetches a CSV file from a GitHub gist, cleans its formatting, and uses `d3.csvParse` to convert the text into a tabular data structure. The visualization then displays a summary of the dataset—its size in kilobytes, row count, and column count—in a styled HTML box, while also logging this information to the console. Finally, it appends a static SVG containing a circle and a rectangle to the page, using D3's selection and attribute methods.