This visualization displays the top 10 companies and their sales figures for 2020 using a pie chart. The chart segments are color-coded and labeled with sales values, and a legend on the right maps each company name to its corresponding color and sales amount. The code uses the D3.js library (d3.csv, d3.pie, d3.arc, d3.scaleOrdinal) to fetch data from a CSV file hosted on GitHub and render the SVG chart, with custom styling applied for text and legend elements.