Explain the function of the image
A cover image needs to communicate a topic; a product image needs to show features; a diagram needs to explain relationships. Start with the function. It defines what should be highlighted and what can be simplified.
Describe the audience, context, and place of use. A small thumbnail needs to work in just a few pixels. An image for detailed reading can include more information. Don’t try to fit all objectives into a single composition.
Why learn
The function guides the evaluation. Instead of choosing only the most impressive image, you choose the one that communicates best what the piece needs to say.
✓ Do
Check words and the number of elements.
✗ Avoid
Choose only based on the impact of the first impression.
Key concepts
Build a brief by fields
Separate topic, composition, style, proportion, text, and constraints. Explicit fields make it easier to reuse the request without copying a long, ambiguous description. A library of briefs can be organized by function: cover, ad, explanation, or comparison.
An image skill helps turn those fields into a request suitable for the generator. Even so, the brief should stay readable for you. The goal isn’t to create magic words, but to make intent and boundaries clear.
Why learn
A structured request lets you change only what needs to change. This reduces accidental variation between images in the same series.
A way to apply
- Define the function and fill in the brief fields.
- Produce variations by changing one decision at a time.
- Compare in the final dimension and save the recipe.
Key concepts
Treat text as a requirement
If the image needs to contain words, provide the exact text and verify every character in the output. Generation may alter spelling, punctuation, or the number of characters. For pieces where text is essential, an alternative is to generate the visual base and insert typography in an editing step.
Don’t treat a nearly correct text as done. Also check whether the composition left room for reading and whether the contrast works at the final size. The test should happen at the dimension where the piece will be used.
Why learn
An eye-catching image can fail on the most important information. Separating the visual base and typography provides control when textual fidelity needs to be high.
Function: cover of a fictional lesson about organization.
Topic: three organized cards on a table.
Composition: topic on the right; clear area on the left.
Style: clean illustration, no logos.
Aspect ratio: 16:9.
Text: insert later, in an editing step.
Series: keep framing and palette across the three covers.
Key concepts
Compare easy and difficult cases
Test one simple brief and another that combines several constraints. The second one helps reveal coherence limits, counting, orientation, or text issues. Record what failed in observable terms: three objects instead of four, a wrong word, or a shifted focus.
When repeating, change one variable. If you change topic, style, and proportion all at once, it will be hard to understand what improved. Not every failure needs another tool; sometimes, reducing ambiguity or separating steps is enough.
Why learn
Difficult cases show where the process needs human review. Controlled comparison prevents wasting attempts without learning from the results.
✓ Do
Keep visual constants across the pieces.
✗ Avoid
Change all variables in every attempt.
Key concepts
Preserve the series recipe
Save the brief, the model used, the dimensions, and the available parameters. If there is a reference image, record which one was used. The recipe doesn’t guarantee identical reproduction across every job, but it helps you understand the decisions that produced the result.
For a series, define constant elements: palette, framing, and the text area. Let the topic vary within that set. Review the pieces side by side to spot deviations that go unnoticed when each one is evaluated in isolation.
Why learn
Consistency comes from observable rules and reviewing the set. A recipe lets you continue the series without relying on the memory of whoever created the first piece.
| Criterion | Expected evidence |
|---|---|
| Clarity | The topic is recognized at the size of use. |
| Text | There is space and contrast for the title. |
| Series | All three pieces share visual rules. |
Key concepts
Practice: create three coherent covers
Prepare three briefs for a fictional series about organization, research, and delivery. Use the same aspect ratio and the same area reserved for the title. You can generate images or start with simple sketches; the core practice is making the criteria comparable.
Assess topic clarity, space for text, consistency, and legibility. If you use a generator, identify the output as generated image and record the recipe. Don’t attribute the exercise to client photos or real results that don’t exist.
Why learn
The practice produces a small system of visual decisions. It can be reused for covers of modules, presentation materials, or project documentation.
Your exercise
Create briefs for Organization, Research, and Delivery. Keep a 16:9 ratio, a discreet background, and space for the title on the left. Explain one allowed difference and two constants.
Download practice sheetCheck the commented answer
Allowed difference: the object representing each theme. Constants: framing and title area. The evaluation should compare topic recognition and consistency across the three pieces, as well as correctness of any inserted text.
Check your understanding
An image came out beautiful, but it changed one word in the title. Is it ready?
Key concepts
What stays from this module
A reusable brief and an evaluation of three visual outcomes.
- ✓ The topic is recognized at the size of use.
- ✓ There is space and contrast for the title.
- ✓ All three pieces share visual rules.
Progress records your reading. The practice is completed when you check the submission.