A stacked bar chart visualizes the number of student attendance records (by status like Present, Absent, or Pending) for each course code, broken down across different days of the week. The chart uses D3.js with the `d3.layout.stack` API to create stacked layers, an ordinal x-scale for day numbers, and a linear y-scale for counts. SVG rendering displays the bars, while a color legend and hover tooltip (via `d3-tip`) allow filtering and inspection of specific attendance statuses. The data originates from a CSV file containing student course attendance logs.