This visualization shows the average attendance for each module using a bar chart, with the y-axis representing the percentage of attendance and the x-axis displaying different module codes. The bars animate as they grow to their final height, and hovering over a bar highlights it in orange and displays its exact attendance value as a text label. The code uses D3.js v4 APIs like `d3.scaleBand`, `d3.scaleLinear`, `d3.axisBottom`, and `d3.axisLeft`, along with SVG transitions for animation. The data is loaded from a CSV file containing course names, ages, and average marks.