
The vast majority of books published on Amazon KDP sell fewer than 100 copies over their entire lifetime. This usually has nothing to do with poor content. In most cases, authors lose sales because they make the same avoidable mistakes long before the book ever goes live. Experienced publishers are aware of these pitfalls and know how to work around them. Beginners, on the other hand, tend to fall into them one after another — wasting months of effort and significant amounts of money. In this guide, we’ll break down 15 major mistakes that hurt KDP performance and explain how to fix them.
One of the most common beginner mistakes is choosing a topic purely based on personal interest, without validating demand. Authors write the book, upload it to Amazon, and then wonder why sales never come.
The problem isn’t the book itself - it’s the market. Either the niche is oversaturated, or there simply aren’t enough buyers searching for that type of content.
How to fix it: before you start writing, analyze Amazon itself. Search for books in your topic area. If most competing titles have a Best Sellers Rank above 200,000, or if the niche shows 50,000+ competing books, it’s a strong signal that the market is no longer viable.
Your cover is the very first thing a potential buyer notices. If the design looks cheap or unprofessional, readers won’t even click to read the description.
Blurry images, hard-to-read fonts, clashing colors, or an amateur layout instantly signal low quality and scare people away.
How to fix it: analyze top-selling books in your niche and identify shared visual patterns. Then create a cover that fits the market while still standing out. Either hire a professional designer (you can find solid options for $20–50 on Fiverr) or invest time into designing it properly using Canva.
Your product description is your main sales tool. A flat, generic description almost guarantees lost sales.
A common mistake is failing to explain value. Example of bad copy: “A self-development book with 200 pages of useful information.”
How to fix it: write copy that clearly answers, “What will I learn, and how will this improve my life?” Use a simple structure: problem → solution → outcome. Add bullet points highlighting specific results the reader will get.
Price affects both volume and profit. Set it too high and buyers hesitate. Too low and you earn almost nothing per sale.
For Kindle ebooks, the sweet spot is $2.99–$9.99, where Amazon pays 70% royalties and customers are most comfortable buying.
How to fix it: start between $2.99–$4.99 to attract early readers and reviews. Once traction builds, experiment with higher prices and track performance.
Keywords are the key to visibility in Amazon search. Without optimization, a book remains invisible.
Authors don't use keywords in the title, description, or 7 KDP keywords. Result: the book doesn't appear in search results for relevant queries.
How to fix: Research the keywords readers enter when searching for similar books. Use tools like Publisher Rocket or Book Bolt. Include keywords naturally in the title, subtitle, and description.
Categories determine where your book appears in the Amazon catalog. Incorrect categories = loss of target audience.
Mistake: Choosing broad categories like "Fiction" instead of narrow ones like "Action Fantasy" or "Dark Romance."
How to fix: Choose two narrow categories that are relevant to your book. Look for categories with an average number of reviews below 100—it's easier to earn the bestseller badge there.
Mistake #7: Technical Chaos – Poor Formatting and Its Impact on Ratings on KDP
Incorrect formatting causes display issues in e-readers. Readers receive an unattractive version and leave negative reviews.
Typical problems: page numbers, large indents, missing table of contents, incorrect hyphenation.
How to fix: Use Amazon's free Kindle Create for professional formatting. Check the book in Kindle Previewer on different devices.
Newbies publish one book and expect significant income. This is unrealistic. KDP operates on a portfolio principle. Success results from publishing 20-50 books, which together generate a stable income.
How to fix it: Accept that your first book is an experiment. Plan a series of publications. Each new book teaches you and increases your income.
Authors think publication is the end of their work. In reality, it's only the beginning. Without marketing, a book will remain invisible.
A typical mistake: publishing a book and expecting people to find it by chance. This doesn't happen.
How to fix: Start minimal marketing from day one: share the link on social media, ask friends for reviews, consider Amazon Ads. Even $10 in advertising in the first month shows results.
Reviews are the currency of Amazon KDP. Early reviews are critical for visibility and clicks. Mistake: Not asking readers for reviews. Without reviews, a book looks suspicious and won't appear in recommendations.
How to fix: After publishing, ask friends, family, and early readers to leave honest reviews. If you have email subscribers, send an email asking them to read and leave a review.
Rushing to publish results in a book with errors, typos, and strange formatting. Readers see this and leave negative reviews, citing the quality of the content.
How to fix: Conduct at least two rounds of editing: the first for meaning and structure, the second for grammar. Use Grammarly for automatic checking. Ask someone else to proofread it before publishing.
The authors choose common themes that have already been covered by thousands of books. For example, "How to Be Happy" or "Personal Development."
In such competition, a newcomer cannot stand out without a significant advantage.
How to fix: Niche your topic. Instead of "Personal Development," create "Personal Development for Introverts" or "Confidence Building for Women Over 40."
Successful publishers monitor niche trends and publish in a timely manner.
Newbies write a book in a month, and the trend has already passed. Result: no one is searching for this topic.
How to fix: Monitor which books are growing in sales in your niche. Explore new genres and topics on BookTok or YouTube. Publish books when interest in the topic grows.
Amazon allows you to specify seven keywords. Many authors fill them out incorrectly, using phrases that are too general or irrelevant.
An example of an error is using one word ("book") instead of a phrase ("detective book for adults").
How to fix: Use 2-4 word phrases. Choose keywords that real readers search for. Avoid overly general or overly specific phrases.
The authors publish a book and have no plans for further development. There is no development strategy.
Result: one book, minimal income, no progress.
How to fix: Create a plan: what are the next 3 books you will publish, what niches you want to test, how you will promote your portfolio.
Niching: The niche has demand (there are books with BSR < 100,000) and low competition (< 10,000 results).
Cover: professional quality, similar to niche bestsellers, text is readable in miniature.
Description: Clear, compelling, explains the benefits to the reader.
Price: Range: $2.99-$9.99 for e-book.
Key words: realistic 2-4 word phrases researched using data.
Categories: narrow, relevant, with a low average number of reviews.
Formatting: Tested in Kindle Previewer, no display errors.
Marketing: plan for the first month (social media, reviews, possibly advertising).
Next books: You will already have started working on the second publication.
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