TL;DR
To get your book noticed on Amazon, fix your listing before you spend a dollar on promotion. Fill all 7 KDP keyword slots, choose 3 specific categories, rewrite your first 3 description lines, add A+ Content, and claim Author Central. Then drive your own traffic to a page that already converts.
Amazon lists more than 12 million books. Your book is competing with every one of them for the same handful of pixels on a search results page.
Here is what most authors do about that: they publish, watch sales flatline in week 3, and start buying ads. Ads send traffic to a listing that was never built to convert, the money burns, and they conclude that Amazon is rigged.
It is not rigged. It is a search engine, and it rewards the same thing every search engine rewards: a page that gives shoppers what they asked for. This guide covers 14 ways to market a book on Amazon, in the order that actually works, starting with the free listing fixes that most authors skip.
Read on to learn how to promote your book on Amazon.
How Amazon decides which books to show readers
Amazon's search ranks books on 2 things: relevance (does your metadata match the search) and performance (do shoppers click and buy when they see you).
That second half is what trips authors up. Relevance gets you into the results. Conversion keeps you there. If Amazon shows your book 1,000 times and nobody clicks, it stops showing your book.
Which means the order of operations matters more than the tactics:
- Relevance first. Keywords, categories, title, subtitle, and description tell Amazon what your book is and who it is for.
- Conversion second. Cover, description, reviews, price, and A+ Content decide whether a shopper who lands on your page buys.
- Traffic third. Ads, promotions, and your email list. This step only pays off once the first 2 are done.
That sequence is the entire answer to how to get noticed on Amazon. Nothing about it is unique to books either. It is the same system that governs how to get your product noticed on Amazon whether you sell paperbacks or protein powder. Books simply have their own metadata fields.
The 7 fields that decide whether readers find you
Title + subtitle Your single strongest relevance signal. Amazon weights it heavily. Fixed at publish, editable anytime
7 keyword slots 50 characters each, per format. Most authors leave 3 or 4 of them blank. Free, editable anytime
3 categories Per format. Decides which browse pages and bestseller lists you can appear on. Free, editable anytime
Book description Supports basic HTML. The first 3 lines are all a mobile shopper sees before "Read more." Free, editable anytime
Cover The only thing a shopper sees in search results at thumbnail size. Free to swap, costs money to make well
A+ Content A free visual module below the fold on your product page. Free, most indie authors still skip it
Author Central Your author page, bio, and follow button. Links every book you have written. Free
All 7 are free. All 7 are editable after launch. If you fix nothing else, fix these.
How to promote your book on Amazon: 14 ways
Work through these in order. The first 7 are listing fixes you can complete in an afternoon. The last 7 cost time or money and only work once the first 7 are done.
Part 1: Amazon book SEO (fix the listing first)
Amazon book SEO is unglamorous and it is where nearly all of the free upside lives. These 7 fixes cost nothing but attention.
Write an author bio that sells the bookYour bio is not a resume. It is the last piece of proof a hesitant shopper reads before deciding whether to trust you with 6 hours of their life.
For nonfiction, lead with the credential that makes you the right person to have written this specific book. For fiction, lead with the thing that tells readers you write the kind of story they like. Write in third person, keep it under 250 words, and end with where to find you.
1. Fill all 7 keyword slots, per format
KDP gives you 7 keyword fields of 50 characters each, and each format (ebook, paperback, hardcover) gets its own set. Publishing an ebook and a paperback means filling out 14 fields, not 7. Most authors fill 3 and move on.
Write each field as a short phrase a reader would actually type, not a single word. Separate words with spaces only. Commas, quotes, and pipes waste characters, because Amazon reads each field as one continuous string. Never repeat words already in your title, subtitle, or category, since those are already indexed.
2. Choose 3 categories, and go deep instead of broad
Since mid-2023, KDP gives you 3 categories per format, chosen directly from Amazon's own browse taxonomy. The old workaround of emailing KDP support to request 10 categories no longer exists. If a guide tells you to do that, it is describing a system Amazon retired.
With only 3 slots, resist the biggest category you technically qualify for. A book that ranks #4 in a specific subcategory gets a bestseller badge, category page placement, and a spot in the "also bought" carousels of similar titles. The same book sits at #40,000 in the parent category and is invisible.
3. Rewrite the first 3 lines of your book description
On a phone, a shopper sees roughly 3 lines before the "Read more" link. That is your entire pitch. Most author descriptions spend those 3 lines on setup.
Lead with the hook: the promise for nonfiction, the conflict for fiction. Then use KDP's supported HTML to break the rest into short paragraphs with a bold subhead or two. A wall of unformatted text is the single most common conversion killer on an indie listing.
4. Get a cover that matches your genre, not your taste
Your cover is the only thing competing in search results, at roughly the size of a postage stamp. It has one job: signal your genre in under a second so the right reader stops scrolling.
The test is not "do I like it." Pull up the top 20 books in your target category, put your thumbnail in the grid, and ask whether yours looks like it belongs there. If it looks like the odd one out, it is not distinctive, it is mismatched. Hire a designer who works in your genre specifically.
5. Add A+ Content
A+ Content is a free module of images and formatted text that appears below your description on the product page. Amazon built it for brand sellers and opened it to KDP authors, and a large share of indie titles still do not use it.
Use it for the things a text description handles poorly: a comparison of what is inside the book, your credentials as the author, a series reading order, or pull quotes from reviews. It costs nothing but design time, and our publishing packages include A+ Content design.
6. Claim your Amazon Author Central page
Amazon Author Central is free, takes about 20 minutes, and does 3 things: it puts your photo and bio on every book page, it groups all your titles under one author profile, and it gives readers a Follow button that triggers an email from Amazon every time you publish something new.
That follow list is one of the few author assets Amazon maintains for you at no cost. If you plan to publish more than one book, set it up before your next launch, not after.
7. Write an author bio that sells the book
Your bio is not a resume. It is the last piece of proof a hesitant shopper reads before deciding whether to trust you with 6 hours of their life.
For nonfiction, lead with the credential that makes you the right person to have written this specific book. For fiction, lead with the thing that tells readers you write the kind of story they like. Write in third person, keep it under 250 words, and end with where to find you.
Part 2: Build proof
Once your listing is findable, the question becomes whether a stranger will trust it. That is what reviews are for.
8. Get editorial reviews
Editorial reviews are quotes from credible sources that appear in a dedicated section of your Amazon listing, separate from reader reviews. You control them, and you can add them before you have a single customer review.
They matter most for nonfiction. If you wrote a book on operations for founders, a quote from a recognized operator in that world does more for a skeptical buyer than 40 anonymous 5-star ratings. Ask people in your field directly. Most say yes if you make it low effort for them.
9. Build reader reviews systematically, not hopefully
Reader reviews are the other half of the trust equation, and waiting for them to appear on their own is not a plan. Build an advance reader team before launch, ask inside the back matter of the book itself, and follow up with your email list.
Amazon's review policies are strict and worth reading before you start. Our guide to getting Amazon book reviews for free covers what is allowed and what will get your reviews stripped.
10. Decide on Kindle Unlimited deliberately
Enrolling in KDP Select puts your ebook in Kindle Unlimited and requires 90 days of Amazon ebook exclusivity. In exchange you earn page-read royalties and unlock free promotion days and Kindle Countdown Deals.
It is a genuine trade, not a free win. Genre fiction readers live in Kindle Unlimited, so most fiction authors should be in. Nonfiction authors selling to a business audience often do better going wide. Pick on purpose rather than by default.
Part 3: Drive traffic
Now, and only now, is it worth sending people to your page.
11. Publish in every format you can
Every format is a separate listing with its own keywords, categories, and shot at a bestseller badge. Ebook, paperback, hardcover, and audiobook each reach a different buyer.
Hardcover is the one most indie authors skip, and it is often the highest margin. Audiobook is the largest untapped format for nonfiction. If you have not yet published the ebook edition, our guide on how to publish an ebook walks through the setup.
12. Send your own traffic before you buy any
Your email list, podcast appearances, existing social following, and any group you already belong to will convert far better than cold traffic, because those people already know you.
This is also the cleanest way to teach Amazon that your listing converts. Sales that arrive through your own channels still count toward your rank and still trigger the "also bought" recommendations that bring in strangers later.
13. Run a price promotion with a real deadline
A discount with no end date is not a promotion, it is a price change. Use Kindle Countdown Deals or free promo days (both require KDP Select), announce the window to your list, and submit to promo sites in advance.
BookBub is the largest of those sites and the hardest to get into. Apply anyway, and stack 3 or 4 smaller sites on the same days so the spike is concentrated rather than spread thin.
14. Run Amazon Ads once, and only once, the page converts
Amazon Ads work when your listing already turns visitors into buyers. They fail expensively when it does not, which is why so many authors conclude ads do not work for books.
Start small, target specific comparable titles rather than broad category terms, and give each campaign 2 weeks before you judge it. If your organic conversion is weak, ads will not fix it. They will only cost you more per sale to prove it.
How to promote your book on Amazon for free
9 of the 14 tactics above cost nothing but time: keywords, categories, description, A+ Content, Author Central, author bio, editorial reviews, reader reviews, and your own audience.
If your budget is zero, here is the sequence. This is also the honest answer to how to get readers on Amazon when you have no list, no following, and no launch team.
| Free tactic | Time to do it | What it moves |
|---|---|---|
| Fill all 7 keyword slots per format | 60 minutes | Search visibility |
| Reset your 3 categories to specific subcategories | 45 minutes | Browse placement and badges |
| Rewrite the first 3 lines of the description | 60 minutes | Conversion rate |
| Build A+ Content | 2 to 3 hours | Conversion rate |
| Set up Author Central and the Follow button | 20 minutes | Repeat readers |
| Request editorial reviews by email | 90 minutes of outreach | Trust |
| Add a review request to your back matter | 15 minutes | Review velocity |
| Pitch 10 podcasts in your topic | 3 hours | Qualified traffic |
| Free promo days via KDP Select | 30 minutes to schedule | Rank and visibility spike |
That list is roughly 2 focused days of work, and it is the highest return 2 days most self-published authors will ever spend. For more marketing options across every channel, see our roundup of 150 book marketing ideas.
What actually moves the needle
If you only do 3 things: fix your keywords and categories, rewrite your description, and get your first 20 honest reviews. Everything else compounds off those.
Not every tactic here is worth the same. Here is how we rank them after working with thousands of authors on launches:
| Tactic | Effort | Impact | Do it when |
|---|---|---|---|
| Keywords and categories | Low | High | Today |
| Book description rewrite | Low | High | Today |
| Cover that fits the genre | High | High | Before launch, or now if it is wrong |
| First 20 reader reviews | Medium | High | Launch window |
| A+ Content | Medium | Medium | Week 1 after launch |
| Author Central | Low | Medium | Today |
| Extra formats | Medium | Medium | Within 90 days |
| Editorial reviews | Medium | Medium (high for nonfiction) | Pre-launch |
| Price promotions | Medium | Medium | Once you have 15+ reviews |
| Amazon Ads | High | Varies | Only after the page converts |
| Social media posting | High | Low | If you enjoy it |
The last row is deliberate. Social media is the tactic authors reach for first and the one that returns the least per hour. It builds a brand over years. It does not fix a listing that nobody can find this month.
Common mistakes
- Treating the listing as finished. Keywords, categories, description, and price are all editable forever. Revisit them every quarter.
- Filling keyword slots with words already in your title. Those terms are indexed already. You are burning slots on nothing.
- Choosing categories by ego. Ranking #900 in a huge category is worth less than ranking #3 in a small accurate one.
- Buying ads to fix a conversion problem. Ads amplify whatever your page already does. If it does not sell, ads sell nothing louder.
- Only publishing one format. Each format is a separate listing, a separate set of keywords, and a separate chance to rank.
- Chasing reviews in ways Amazon prohibits. Paid or incentivized reviews get stripped and can put your account at risk. Not worth it.
- Launching quietly and hoping. Amazon rewards concentrated sales, not steady trickles. Save your audience for a defined window.
Amazon book marketing FAQ
How long does it take to get noticed on Amazon?
Listing changes like keywords and categories typically show up within 1 to 3 days. Rank changes follow sales, so you will usually see movement within 2 weeks of a concentrated push. Building steady organic visibility takes months, not days.
How many keywords does Amazon KDP allow?
7 keyword fields of up to 50 characters each, per format. Ebook, paperback, and hardcover each get their own set of 7, so a book in 3 formats has 21 keyword fields to fill.
How many categories can I choose?
3 per format, selected directly in KDP from Amazon's browse taxonomy. Since mid-2023 there is no way to request additional categories through support. Amazon may place your book in related categories automatically based on your keywords and content.
How to increase book sales on Amazon without ads
Fix relevance and conversion first. Fill every keyword slot, choose specific categories, rewrite the first 3 lines of your description, add A+ Content, and build reviews. Then drive your own audience during a defined promotion window. Most stalled books have a metadata problem, not a traffic problem.
Does Amazon book SEO actually work, or is it a myth?
It works, with limits. Optimizing metadata makes your book eligible to appear for searches it currently misses entirely. It cannot make a book rank for a term nobody searches, and it cannot compensate for a listing that shoppers see and skip.
Should I be in Kindle Unlimited?
Usually yes for genre fiction, because that is where those readers already are. Often no for nonfiction aimed at business buyers, where wide distribution and higher per-copy royalties matter more. It requires 90 days of ebook exclusivity to Amazon.
Is it too late to fix my listing if my book launched years ago?
No. Every field discussed here is editable at any time from your KDP bookshelf. Backlist titles frequently see the biggest gains, because they have had years of reviews accumulating on a listing nobody optimized.
Start with the listing
Learning how to get your book noticed on Amazon comes down to a sequence, not a secret. Make the book findable, make the page convincing, then send traffic. Doing those in the wrong order is why most author marketing budgets disappear without a trace.
Pick 2 items from Part 1, do them this week, and note your Best Sellers Rank before and after. Then work down the list. That is the whole method!
