Plan a visual that explains something

Version 1.1 · Published October 13, 2026 · Revised October 13, 2026

Newly authored public companion, October 2026. This is an original planning template informed by public accessibility guidance, not a republication of an earlier workspace template.

Start with the reader

Complete this sentence before choosing colors or a tool: “After seeing this, the reader should be able to explain ______.” If the blank contains several unrelated ideas, make more than one visual.

Fill-in planner

Working title:
Reader and situation:
One thing the reader should understand:
What the reader already knows:
Question the visual answers:

Three essential facts or relationships:
1.
2.
3.

Source for each fact, value or quotation:
1.
2.
3.

Best form and reason:
- Sequence / comparison / structure / location / quantity / other

Proposed reading order:
Essential labels and units:
What a viewer could misinterpret:
What I will remove because it is decorative or distracting:

One-sentence takeaway:
Short image description:
Longer text explanation, including important values and relationships:
Who will review the draft:
What I will ask the reviewer to explain back:

Choose the form by the job

• A sequence can show ordered steps, with a clear start and end
• A comparison can place the same features beside one another
• A diagram can show parts and their relationships
• A map can answer a location question, if location really matters
• A chart can communicate quantities, provided the scale and units are clear

These are editorial choices for this template, not a claim that one visual form is always best. A paragraph may be the clearest option when the relationship is simple.

A concrete practice example

Explain how to check out a book from a fictional neighborhood book swap. Use four numbered steps: choose a book, record its title, note the return date, return it to the marked shelf. A label beside each step tells the reader what to do. A paragraph below repeats the process in ordinary language. No real names, accounts or location details are necessary.

Accessibility pass

W3C's complex-image guidance recommends a short identifying description plus a longer text account of essential information when an image carries substantial content. Its design tips also advise against relying only on color.

Apply those ideas by checking:

• Can a reader understand the relationship from the accompanying text?
• Are values, units and important changes available outside the image?
• Do labels or patterns carry meaning alongside color?
• Is the reading order understandable when the visual is reduced in size?
• Does the description explain the information rather than merely list colors?

Reader test

Show the draft to someone without your explanation. Ask them what it says, what they would do next, and what is confusing. Record their actual answer. If their explanation differs from the intended takeaway, revise the structure or labels before adding decoration.

Completion record

Version reviewed:
Reviewer task:
What the reader understood:
One misunderstanding:
Change made:
Source check complete: yes / no / partial
Text equivalent complete: yes / no / partial
Ready for intended use: yes / revise / needs another review

This checklist supports review. It does not certify accessibility or replace testing with the intended audience.

Revision note

Revised October 13, 2026: added a practical worked check and a clearer next decision. Original publication and evidence limits are preserved.

Diagnose the explanation before decorating it

Imagine an invented book-swap poster with four beautifully illustrated panels but no numbers or connecting labels. A reader can identify books and shelves yet cannot tell which action comes first. Adding another illustration would not address the problem. A useful repair is to number the steps, name the action in each panel, and provide the same sequence in text.

A second version might still confuse two different quantities: “four steps” and “four books.” Label the steps as actions rather than presenting four book icons as the sequence. Decorative repetition can accidentally carry meaning.

For your own draft, separate these checks:

• Meaning: can someone state the intended relationship without your explanation?
• Evidence: do the supplied facts support the labels and quantities?
• Access: is the essential information available without relying on color or the image alone?

A draft can pass one check and fail another. Record the actual point of confusion, repair that part, and ask the same reading question again. Keep the old and new versions so you can explain the change. This scenario is an authored example, not a reader test that has already run.

Choose the next method

If the visual belongs in a printable handout, continue with Check the file people will actually print. If the problem is whether the diagram's conclusion follows from its data, use Review a claim against its evidence first.

Public references

• W3C WAI: Complex Images
• W3C WAI: Designing for Accessibility