Storytelling with Graphs Heatmap Example Infographic

Data visualization infographic titled "Heatmap Example" using a BUBBLE CHART-inspired small-multiples heatmap grid as the dominant visual element: a 4x3 matrix of mini heatmaps, each panel showing a monthly-by-weekday intensity pattern with one clearly surprising outlier panel. Emphasize the small-multiples grid structure while preserving true heatmap encoding with square cells and a shared legend. Sharp axis labels and tick marks in English on every mini chart: x-axis labeled "Weekday" with ticks "Mon", "Tue", "Wed", "Thu", "Fri", y-axis labeled "Month" with ticks "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec". Add a clear color legend labeled "Illustrative intensity" ranging from "Low" to "High". Use realistic plausible illustrative values, with most panels clustered around 42-68 and one standout outlier panel peaking at 96 in a single cell to tell the surprise story. Include 4 key insight callouts with small icons, each attached to the relevant panel or cell: "96" with interpretation "Unexpected spike stands far above the typical range", "58" with interpretation "Most panels cluster near a stable mid-level pattern", "+31" with interpretation "Outlier exceeds its neighboring cells by a wide margin", "12 of 12" with interpretation "Only one panel breaks the broader consistency". Include a subtle annotation near the outlier cell labeled "Outlier cell" and a short caption "The anomaly is visually obvious even before reading the numbers". Add a small source / data-note strip at the bottom in English: "Data note: Illustrative example for storytelling with graphs. Values are illustrative, not sourced. Scale is consistent across all panels. No axis truncation." Visual style: retro 1970s magazine charts, editorial blue & cream palette with muted navy, dusty sky blue, warm cream, faded teal accents, slightly off-white paper texture, geometric icons, vintage print-inspired typography, but crisp modern legibility. Mood: analytical, surprising, elegant, editorial. Compose as editorial data journalism illustration, FT / Bloomberg-grade chart aesthetics, vector-clean infographic layout. All text MUST be written in English (array). Every heading, label, caption, legend and metric name in the image must be in English — not English. Spell each English word correctly using English characters and diacritics. Numbers stay as digits, no fake authoritative sources cited, no watermarks Numbers labeled "illustrative" unless the user supplied specific sourced data. No fake authoritative sources cited (do not invent "Source: Reuters 2025" — use "Illustrative example" instead). No misleading axis truncation or scale manipulation.