This data-summary and preview dashboard combines a CSV data table with a simple categorical bar chart. Built with D3 v7, it loads a small dataset of twelve people with attributes like age, country, and favorite color using `d3.csv`. The interface shows key statistics, a preview of the first five rows in an HTML table, and a bar chart rendered as SVG. The chart visualizes the frequency of values within selected columns, offering a quick view of categorical distributions while the dark-themed layout presents all insights in one organized page.