It is tempting, when sales are disappointing, to look at the cover and decide it must be the reason. Sometimes it genuinely is part of the problem. Often, though, a cover gets blamed simply because it is the most visible, most personal, easiest-to-judge part of the book, while the actual cause sits somewhere less visible, such as traffic volume, category placement or the blurb.
This guide sets out how a cover can genuinely affect sales, the specific problems worth checking for, and, just as importantly, what a cover cannot do. A good cover raises the chances the right reader clicks through and understands what the book offers; it cannot manufacture interest in a book that has limited demand, and it cannot fix a product page that gets almost no traffic in the first place.
What a cover can genuinely affect
A cover operates mainly at two moments: the instant a reader scans a page of thumbnails, and the slightly longer look they give a book once they have clicked through. In the first moment, a cover can help or hinder whether the book gets noticed at all among visually similar competitors. In the second, it shapes what kind of book the reader now expects, which affects whether they continue to the description.
It is worth naming this precisely rather than in absolutes. A cover can reduce clicks. A cover can create a mismatched expectation that causes a reader to bounce off the description. A cover cannot, on its own, be reliably credited or blamed for a sale that depended on many other things happening correctly first.
Clickability is not conversion
A cover that generates a lot of clicks is not automatically a successful cover if those clicks come from the wrong readers. A striking, eye-catching image can pull attention from people who were never going to enjoy the book, which shows up later as high traffic but low conversion, refunds, or poor reviews about mismatched expectations.
The more useful question is not "does this cover get attention?" but "does this cover get attention from the reader who would actually enjoy this specific book?" A quieter, more accurately signalled cover can outperform a flashier one on that measure, even with fewer raw clicks.
What a good cover cannot do
This matters because authors sometimes commission a cover redesign expecting it to fix a sales problem that actually has nothing to do with the cover, such as low overall traffic, a narrow category, or a book that sits between genres in a way readers find hard to place regardless of the artwork.
Diagnostic examples
Example
Imagine two debut fantasy novels published in the same month, both with competent, genre-appropriate covers. One receives steady organic traffic and modest, consistent sales; the other receives almost no traffic at all, because it was placed in a narrow, low-visibility category. The cover is not meaningfully different in quality, but only a traffic and metadata review would reveal that the second book’s problem has nothing to do with its artwork.
Example
Imagine a self-help title with a technically clean, well-typeset cover that nonetheless uses cool, minimalist imagery associated with literary fiction. It receives a reasonable number of clicks from readers browsing that shelf, but conversion is low, because those readers were not looking for a self-help book. Here the cover is not "bad"; it is simply signalling the wrong genre to the audience it happens to be reaching.
Diagnostic questions
- Is the product page receiving reasonable traffic at all, or is the more basic problem a lack of visibility?
- When traffic does arrive, does it convert at a rate broadly comparable to similar books, or noticeably lower?
- Does the cover, at thumbnail size, clearly signal the correct genre to someone unfamiliar with the book?
- Have any readers or reviewers specifically mentioned confusion about genre, tone or content relative to the cover?
- Has anything else changed recently, price, categories, description, that could equally explain a change in sales?
What to check first
- 1
Check traffic before appearance
If almost nobody is seeing the product page, cover quality cannot be the primary problem, however it looks.
- 2
Compare against real genre neighbours
Look at current, successful books in the same specific category, not aspirational comparisons from a different genre.
- 3
Test at thumbnail size
Shrink the cover to search-result size and check the title and genre signal are still clear.
- 4
Separate cover feedback from taste
One person disliking the style is not the same as the cover failing to signal genre or looking unfinished.
- 5
Only then consider the description and metadata
If the cover checks out, move to the blurb and categories before assuming a redesign is needed.
What not to assume
Do
- Treat low sales as a prompt to investigate several factors, not just the cover
- Look for a specific, describable cover problem before deciding one exists
- Check thumbnail legibility as part of any cover assessment
Avoid
- Assume low sales prove the cover is at fault without checking traffic first
- Assume a striking, high-click cover is automatically a good cover
- Assume a redesign will fix a demand or visibility problem that has nothing to do with the artwork
Common mistakes
- Blaming the cover before checking traffic. A book with very little visibility will sell poorly regardless of cover quality; visibility is worth ruling out first.
- Confusing clicks with successful outcomes. A cover that attracts the wrong reader can generate clicks without generating sales or good reviews.
- Judging the cover only against personal taste. Disliking a style is different from the cover failing to signal genre, being unreadable, or looking unfinished.
- Expecting a cover to fix a narrow-demand book. A cover cannot manufacture interest in a subject or genre with very limited existing readership.
- Redesigning before identifying the specific problem. A redesign undertaken without a clear diagnosis risks fixing nothing, or fixing the wrong thing.
Frequently asked questions
Can a cover alone stop a book selling?
A cover can reduce clicks or create a mismatched expectation that reduces conversion, but low sales usually involve more than one factor. Rule out traffic and category placement before concluding the cover is the main cause.
If my cover gets a lot of views but few sales, is the cover the problem?
Not necessarily the cover itself. It may be attracting the wrong readers for the book, which points to a genre signalling problem rather than a technical quality problem. See [how do I know if my book cover fits the genre](/resources/book-sales-growth/how-do-i-know-if-my-book-cover-fits-the-genre).
Should I assume my cover is fine if nobody has complained about it?
Not entirely; most readers who are put off by a cover simply scroll past without commenting. Silence is not strong evidence either way.
Is it worth redesigning a cover as a first response to low sales?
Generally no. Check traffic, category placement, blurb and pricing first, then read [should I redesign my book cover after publishing](/resources/book-sales-growth/should-i-redesign-my-book-cover-after-publishing) before committing to a redesign.
Can a great cover make a niche book a bestseller?
No. A cover can help the right readers find and choose a book, but it cannot create demand in a market that does not exist for that subject or genre.