A bar chart displays monthly values from a CSV file, with dates from 2013-01 to 2014-02 on the x-axis and dollar amounts on the y-axis. D3's d3.csv loads the data, d3.time.format parses the dates, and d3.scale.ordinal with rangeRoundBands positions each bar. The x-axis labels are rotated with SVG transforms, while steelblue rectangles encode the values. React and D3 are used in separate index.js and index.html files, though the visible rendering is entirely SVG-based.