You’ve spent months (maybe years) getting your book right. The writing, the editing, the cover. Then you upload it to Amazon, hit publish, and wait for the sales to come.
For most self-published authors, they don’t. And it’s usually not the book’s fault.
Here’s the thing most of us learn too late: On Amazon, your book doesn’t sell your book. Your listing does. Readers don’t read your manuscript before they buy. They read your page: The title, the cover, the description, the keywords working quietly in the background… That page is the one salesperson working for you 24/7, and most authors leave it half-finished the moment they hit publish.
The good news is that your listing is also the cheapest, fastest thing you can improve. You don’t need a bigger ad budget or a mailing list of thousands to fix it. You just need to know what actually moves the needle.
Here are six ways to optimise your Amazon KDP listing, roughly in the order a reader experiences them, from being found to closing the sale.
1. Keywords
Keywords are how readers find you before they ever see your cover. Amazon gives you seven keyword fields in the back end of your KDP listing, and most authors either leave them half-empty or stuff them with words nobody actually types.
The trick is to stop thinking like an author and start thinking like a reader.
You might describe your book as a “Gripping mythological adventure”. Your reader is typing “Fantasy books for kids” or “Books like Percy Jackson”. Those are the phrases that need to be in your fields: The words people actually search, not the words you’d use to describe your work at a dinner party.
The fastest way to find them is Amazon itself. Start typing a phrase into the Amazon search bar and watch what autocompletes. Those suggestions are real searches, ranked by popularity. They’re a free window into the exact language your readers use. Do the same on the Kindle store, note the phrases that keep coming up, and build your seven fields around them. There are free browser extensions that expand these suggestions even further, but the Amazon search bar alone is enough to build a strong keyword list.
One last thing: You don’t need to repeat words that are already in your title, subtitle, or category. Amazon already indexes those. Use your seven fields to widen your reach, not to say the same thing twice.
2. Categories
If keywords are how readers search, categories are how they browse. Every category and subcategory is its own ranked shelf, and picking the right ones puts your book in front of people already looking for something like it.
The mistake most authors make is going too broad. “Fantasy” is a bloodbath. You’re competing with millions of titles and you’ll never surface. The narrower subcategories are where the real opportunity hides: The more specific the shelf, the fewer competitors, and the easier it is to climb it.
That climb matters for one reason in particular: The “Best Seller” badge. Amazon hands that little orange tag to the number one book in each category, and it shows up right next to your cover in the search results. It’s instant social proof, and readers click it. Ranking first in a small, relevant subcategory is far more valuable than being invisible in a huge one.
So don’t pick the biggest shelves you qualify for. Pick the deepest, most accurate ones you genuinely belong in. A book that ranks in three precise subcategories will almost always outsell one lost in three broad ones.
3. Cover
Your cover is the first thing a reader sees, and often the only thing. In a grid of search results, it’s a tiny thumbnail competing with dozens of others for a fraction of a second of attention. If it doesn’t earn a click there, nothing else on your listing gets a chance.
The single biggest mistake is designing a cover that looks good full-size on your screen but falls apart as a thumbnail. That’s the size that actually matters. Before you commit, shrink your cover down to the size of a postage stamp and ask yourself: Can you still read the title? Does it still grab you? If the answer is no, it doesn’t matter how beautiful it looks at full resolution.
Your cover also has to signal your genre in an instant. Readers browse by pattern: A thriller looks like a thriller, a romance looks like a romance, a children’s fantasy looks like a children’s fantasy. This isn’t the place to be original for the sake of it. Look at the top twenty books in your category, notice what they have in common, and make sure yours would sit naturally among them while still standing out. A cover that fights its genre confuses the reader, and a confused reader doesn’t buy.
You don’t need to be a designer to get this right, but you do need to be honest about whether your cover is competing or just existing. If you want to go deeper on the design side (Fonts, colour, imagery), this blog’s own Book cover design tips is a great next read.
4. Title and subtitle
Once your cover has earned the click, your title and subtitle are what turn a curious browser into a buyer. They do double duty: They’re read by humans deciding whether to keep looking, and indexed by Amazon deciding when to show your book. Get them right and they work on both fronts at once.
Your title is largely a creative decision, and you’ve probably already settled it. The subtitle is where most of the opportunity sits, and it’s the part authors most often waste. A vague or purely clever subtitle tells the reader nothing. A good one does a job: It clarifies what the book is, who it’s for, or what the reader will get out of it. “A Novel” says almost nothing; “A Small-Town Vampire Romance” tells the reader exactly what shelf they’re standing in.
The subtitle is also prime real estate for the natural language your readers search. Amazon indexes it, so the phrases a reader would actually type (“Time management”, “Cozy mystery”, “For beginners”) earn their place here far more than a poetic turn that sounds nice but gets searched by no one. The trick is to write a subtitle that reads naturally to a human and still contains the words a reader would look for. When it does both, you’re converting the click and feeding search at the same time.
One caution: Don’t cram. A subtitle stuffed with keywords reads like spam and kills trust faster than a weak one. Clarity first, keywords woven in, never the other way around.
5. Description
Your description is where an interested reader decides to buy, and most authors treat it like a back-cover blurb. It isn’t one. A back cover is read by someone already holding the book. Your Amazon description is read by someone who can leave with one tap, so it has to earn every line.
The first two lines are the ones that matter most. Amazon hides the rest behind a “Read more” link, so whatever sits above that fold is often all a reader ever sees. Don’t waste it on a slow warm-up or a line of praise from someone nobody knows. Open with a hook: The tension, the promise, or the question that makes them need to keep reading. If those two lines don’t pull, the “Read more” never gets clicked.
Write for the reader, not for yourself. It’s tempting to summarise your plot, but a reader doesn’t want a synopsis, they want to know how the book will make them feel. Focus on the experience and the stakes, not a beat-by-beat account of what happens. For non-fiction, the same rule flips to outcomes: What will the reader be able to do, understand, or feel by the end?
Finally, format it so it can actually be read. A wall of text is exhausting on a screen. Short paragraphs, a line of bold for the key promise, a bit of breathing room. Amazon lets you add basic formatting to your description, and a clean, scannable layout converts far better than one dense block nobody finishes.
6. A+ Content
A+ Content is the block of formatted images and text you can add below your description, and it’s the closest thing a self-published author has to a designed sales page. It’s free for any KDP author, and yet most books don’t have it. That alone makes it worth your time: On a page that looks like everyone else’s, the one that doesn’t stands out.
Think of it as your second piece of visual persuasion after the cover. The cover earns the click; A+ Content convinces the reader who’s scrolled down and is still deciding. Use it to show what your description can only tell: The interior, the illustrations, the formatting, the feel of the book. A reader who can see the quality before buying trusts it more. For non-fiction, a clean visual breakdown of what’s inside sells harder than another paragraph ever could, and for a series, it’s the natural place to show readers the other books waiting for them.
The one rule that separates good A+ Content from bad is restraint. It’s a design space, not a second description. Clean layout, strong images, few words. A reader shouldn’t have to read your A+ Content to get the message, they should be able to feel it at a glance. Done well, it’s the difference between a listing that informs and one that genuinely sells.
Beyond the listing
Optimise those six elements and your listing is already working harder than most. There’s one more piece that matters just as much, and it sits slightly outside the listing itself: Reviews. Social proof is arguably the second strongest lever after your cover, and it’s also the hardest to build, the tightest bottleneck every self-published author runs into. It’s a big enough topic to deserve its own space, and this blog already covers it well in its Reviews resource section, so I won’t cover it here. Just know that a great listing and steady reviews are what truly move a book.
The listing is the part you fully control, though, so it’s the place to start. And here’s the honest catch: Knowing what matters is the easy part. Knowing what your listing is getting wrong, and what to fix first, is much harder when you’re staring at your own book. You’re too close to it.
That’s the reason I built KDPeak. I’m an indie author myself, and I made it to check my own listings. It runs through your title, subtitle, cover, description, keywords, categories and A+ Content, then hands you a clear report on what’s working, what isn’t, and what to change first. I saw real improvements on my own books almost immediately, which is why I decided to open it up to other authors.
If you’d like to try it on your own book, you can find it at kdpeak.io. And because you’ve read this far, use the code KDPEAK15 for 15% off.
Riccardo Penna is an indie author and the creator of KDPeak, a tool that analyses your Amazon KDP listing and gives you a prioritised report on what to fix. He writes and builds around one idea: That growth comes from structure, discipline, and doing the small things consistently well.