MARIMEKKO

100% stacked columns whose widths carry a second total. Needs: 2-6 categories with a total each, split into 2-4 shared segments.

part-to-wholecompositionmagnitude

DL-01 AGRAW

Use when

two composition questions at once: how big is each category, and how does each split
market or spend maps where width = size and height = share

Do not use when

audiences reading it for the first time without a walkthrough
more than 6 columns or 4 segments (it becomes a mosaic of noise)

See instead

column totals are close to equal: CH-PTW-02
only one dimension splits: CH-PTW-01

Alternatives

CH-PTW-02 (equal widths)
CH-PTW-05 (one level, area only)

Rules

column width proportional to its total; heights are per-column shares
segment names labeled on the first column, never a legend
share printed in cells that fit; small cells stay silent
column totals printed under the labels

Never do this

more than 6x4 cells
legends
3D mosaic effects
widths not proportional to totals

QA before delivering

width = total, height = share
segments named once
totals printed
unit once
source present

Data shape

title	action title with a number
source	bottom-left always
unit	on first column total
segment_names	2-4 names, shared by every column
columns	[{label, segments: [values]}], width = column total

Sample data (golden)

{
  "title": "North holds a third of spend and commits the deepest share",
  "eyebrow": "SPEND MAP . 2026",
  "source": "Source: sample dataset v1, 2026-07-12",
  "unit": "k$",
  "segment_names": [
    "Committed",
    "Planned",
    "Open"
  ],
  "columns": [
    {
      "label": "North",
      "segments": [
        70,
        30,
        20
      ]
    },
    {
      "label": "Central",
      "segments": [
        40,
        30,
        20
      ]
    },
    {
      "label": "South",
      "segments": [
        20,
        25,
        15
      ]
    },
    {
      "label": "East",
      "segments": [
        15,
        15,
        15
      ]
    },
    {
      "label": "West",
      "segments": [
        5,
        10,
        15
      ]
    }
  ]
}