Covers

How to generate AI book covers in Fyrlo

Brief your cover with one strong visual, a clear mood, and an art style—then review it as part of the project.

Fyrlo editorial6 min readUpdated August 4, 2026

Your cover is the first impression in the library and on exported PDFs. Fyrlo combines project context with the visual description and art style you choose.

Great covers come from focused briefs—not from listing every plot twist.

Before you generate

Confirm the project title and premise first; Fyrlo requires both before AI cover generation.

Decide on one visual subject, the emotional mood, and an art style. The image model intentionally generates the artwork without text; Fyrlo presents it as the project cover.

Writing a cover brief

Strong cover prompts include:

One focal image (tower, couple silhouette, spaceship, key object)
Color mood (teal and gold, muted noir, pastel cozy)
Art style (painterly, anime, cinematic, watercolor, or another available option)
What to avoid (no faces, no clutter, no modern city)

Four writing formats arranged as a literary still life — Example visual from the Fyrlo writing flow — individual results can vary.

Review the result

Check whether the image communicates the correct genre and focal subject at thumbnail size. If the mood is wrong, reset the current AI cover and rewrite the brief before generating again.

A preset cover is always a practical alternative when you do not need custom artwork.

Attach and export

Use the generated cover for the project. It appears in the library and can be included when you export a PDF for readers.

A manuscript progressing from annotated draft to a clean revised version — Observe, change deliberately, review in context.

After you read

Turn the guide into one reviewable change.

A useful article does not end with an idea. It gives you a next step you can test and judge inside the current project.

Open the affected prompt, plan entry, character note, or chapter passage. Change one variable while keeping the premise, format, tone, and remaining context stable. That makes the effect of the advice easier to see.

Read the new version in context. Review story movement and continuity first, then voice and sentence-level polish. Write one sentence about what the next generation should preserve and one about what it should change.

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Choose one variable

Change only the point this guide addresses so the comparison remains meaningful.

Read the whole scene

Do not judge one strong sentence. Check what changes for character, conflict, and the next chapter.

Record the next beat

Write down what should remain and the specific job the following section needs to perform.

Your next chapter, without the blank page

Ready to draft your story?

Choose a format, set genre and tone, and keep generating chapters worth continuing in your library.

Download on theApp Store

Good to know

Questions about this guide

Do covers cost credits?

AI cover generation uses a credit on the free plan and is included with active Premium access under the current offer. Check the app before generating.

Can I generate a cover before writing?

Yes. Fyrlo requires a title and premise before AI cover generation. You can also choose a preset and skip custom generation.

What image size works best for export?

Fyrlo optimizes covers for in-app display and PDF export. Use export preview to confirm how it looks on page one.

Can I use the cover outside Fyrlo?

Review Rocket Digital Limited’s terms for commercial publishing use of AI-generated covers.