This dashboard visualizes how AI tool usage relates to productivity and work/study hours among students and professionals, using a dataset from Kaggle. It presents four interactive charts: a bar chart showing AI tool popularity, a pie chart for user type distribution, a line chart for productivity against work/study hours, and a scatter plot of AI usage versus productivity. Built with D3.js v7, the visualization uses SVG rendering and employs `d3.rollup` for data aggregation, `d3.scaleBand` and `d3.scaleLinear` for scales, and `d3.axisBottom` for axes. The code handles missing numeric values by substituting column means and filters out incomplete categorical rows before rendering.