This horizontal bar chart displays the frequency of letters a–m, with each bar's length proportional to its value. The visualization maps values to bar widths using a linear scale and letters to row positions with a band scale. The SVG rendering uses d3.scaleLinear, d3.scaleBand, axisBottom, and axisLeft to generate the axes, with tick lines showing gridlines. Data loads from a CSV file via d3.csv, and the y-axis labels are cleaned by removing the domain and tick lines.