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Have you narrowed your two favorite choices for a book cover down so much that there’s only one tiny difference between them? If so, don’t think you can skip testing. As one author recently discovered, that small difference between covers can make a huge impact.

The author asked a group of 50 fiction readers who identify as Christian to help decide between two covers.

Options A and B are identical except for the tinge of red running through the sunset scene in Option A. Option B’s colors are slightly less vivid.

Can you guess which one won?

And the winner is…Option A! With a score of 64 to Option B’s 36, readers clearly loved the slightly brighter cover.

Let’s find out why.

Vibrant colors inspire mystical thoughts

While some respondents found the colors in Option B more calming, most readers didn’t want to be calmed.

One male said, “I voted for choice A because the colors are more rich and vibrant. I also like the addition of the pinkish layering in the clouds. It adds a mystical effect that really pops to me and stands out compared to the other book cover.”

Another wrote, “The sunset seems more dreamy, more fantastic and ethereal.”

Still another said, “I like the cover with the little bit of red in the corner. It makes me feel like there is some sort of drama in the book.”

In short, Option A’s colors inspire all sorts of feelings from excitement to fantasy, which compel people to read fiction.

Easier to read the font

Many readers also felt that the font on Option A is a lot easier to read. It’s the same as the font in Option B, but the vibrant colors make it pop.

One respondent said, “The colors are much more vibrant. They allow the words to stand out more and [make them] easier to read.” Another agreed with this specific observation, saying, “I think the purple color gradient of Option A makes the text stand out more and easier to read than Option B.”

Another reader wrote, “I like Option A more because it is such a stark contrast. It really grabs your attention.”

As a fiction author, you definitely want your book cover to grab a reader’s attention and be easy to read at the same time.

Key takeaways

A duller background makes potential readers of Christian fiction feel a bit too depressed or calm.

On the other hand, the brighter reddish-purple hues in Option A steered readers toward feelings of excitement and Christian-appropriate drama. (It is a sunset, after all, not a bloodbath scene.)

This author was definitely smart to test with their target audience before launching!

To test your book covers to your own target audience, head over to PickFu today to create a poll. You’ll get big insights even on seemingly small differences.


Laura Melchor

Laura Ojeda Melchor (she/her) is a freelance writer whose work has appeared in,, Gardener’s Path, and of course, PickFu. She holds a Master of Fine Arts in Writing from Vermont College of Fine Arts. Her debut middle-grade novel, Missing Okalee, was published in the fall of 2021 by Shadow Mountain Publishing. Find her online at

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