Arrows & connectors encodes values as a shaft plus a head that assigns sequence or cause. Heraldic piles and map north arrows; modern CTA chevrons from 20th-c. print ads.
In reports, ads and assignments it fits sequence, cause, download/click targets, map flow. Skip it when every object has an arrow — then none of them mean anything.
Mistakes
- Failure modes 1 — every object has an arrow — then none of them mean anything
- Failure modes 2 — 3-D pies and perspective bars
- Failure modes 3 — Dual axes that fake a correlation
- Failure modes 4 — Truncated axes that shout a small delta
- Failure modes 5 — Legend only, no direct labels
- Failure modes 6 — Missing source, unit or period
Fixes
- Fixes 1 — Return to sequence, cause, download/click targets, map flow.
- Fixes 2 — Flat, one axis, direct labels.
- Fixes 3 — Color-blind-safe palette plus pattern.
- Fixes 4 — Rewrite the title as a claim and add a source line.
Arrows & connectors: honour a shaft plus a head that assigns sequence or cause, and switch when every object has an arrow — then none of them mean anything.