Three pie charts show the distribution of experience levels in data science salaries for the United States, United Kingdom, and Canada during 2023–2024. The visualization uses the D3.js library (v6) with `d3.pie`, `d3.arc`, and `d3.rollups` to aggregate and render the data, while `d3.scaleOrdinal` with `schemeCategory10` assigns colors. Data is loaded asynchronously from a CSV file via `d3.csv` with `d3.autoType`. Labels display each segment’s percentage, and legends identify experience categories.