You've written a book. Or maybe you're halfway through one, already thinking about what happens after the last chapter. Either way, you're facing the question every modern author confronts: how do you actually get this thing into readers' hands?

The traditional publishing route of querying agents, waiting months for responses, and hoping a publishing house picks up your manuscript works for some people. But it's slow, gatekept, and gives you a fraction of the royalties. The alternative is self-publishing through Amazon's Kindle Direct Publishing (KDP), which puts your book in front of the largest book-buying audience on the planet within 72 hours of hitting "Publish."

If you're figuring out how to publish a book on Amazon, this guide covers every step: setting up your KDP account, formatting your manuscript correctly, designing a cover that sells, choosing the right pricing and royalty structure, and launching in a way that gives your book the best chance of finding its audience.

What is Kindle Direct Publishing?

KDP is Amazon's self-publishing platform. It lets you publish ebooks, paperbacks, and hardcovers, all without upfront costs, inventory, or a publisher. You upload your manuscript, set your price, and Amazon handles printing (for physical books), distribution, and payment.

The numbers behind KDP are staggering. Amazon controls roughly 80% of the US ebook market and a significant share of print book sales. In 2023, there were over 4.4 million Kindle ebooks available, and independent authors earned more than $40 billion through the platform since its launch. That's real money going to people who decided to publish themselves.

KDP isn't just for novels. Authors publish nonfiction, cookbooks, children's books, journals, workbooks, poetry collections, coloring books, and low-content books like planners and notebooks. The platform is format-agnostic: if it can be bound and read, you can publish it.

Setting up your KDP account

Before you can publish anything, you need a KDP account. Go to kdp.amazon.com and sign in with your existing Amazon account or create a new one.

During setup, you'll provide:

• Your legal name or business name: This is for tax purposes, not your pen name. You can use a pen name on the book itself.
• Address and phone number: Required for account verification.
• Tax information: KDP requires a completed tax interview (W-9 for US residents, W-8BEN for non-US). Your royalties are taxable income, and Amazon needs this before they'll pay you.
• Bank account details: This is where your royalty payments go. Amazon pays monthly, approximately 60 days after the end of each month.

The entire setup takes about 15 minutes. Once your tax interview is completed and validated, you can publish immediately.

Formatting your manuscript for KDP

This is where most first-time authors hit friction. KDP has specific formatting requirements, and a manuscript that looks fine in Microsoft Word might look broken on a Kindle.

Ebook formatting

Kindle ebooks use a reflowable format, meaning the text adjusts to whatever screen size and font the reader chooses. This has implications for your formatting:

• Don't use manual spacing. No extra line breaks between paragraphs using the Enter key. Use paragraph spacing settings in your word processor instead.
• Use styles consistently. Heading 1 for chapter titles, Heading 2 for section headers, Normal for body text. KDP uses these styles to generate the table of contents.
• Images must be embedded. If your book contains images, they need to be embedded in the file, not linked. Use JPEG or PNG at a minimum of 300 DPI.
• Page breaks before chapters. Insert a page break (not line breaks) before each new chapter.
• Front matter and back matter. Include your title page, copyright page, and table of contents at the front. Acknowledgments, about the author, and any other books go at the back.

KDP accepts several file formats, but the cleanest results come from:

• EPUB: The preferred format. Most professional formatting tools export to EPUB.
• DOCX: Works but requires more careful formatting. Word's "Save As" filtered HTML also works.
• KPF: Kindle Package Format, created by Amazon's free Kindle Create tool.

For a simple text-heavy book (novels, most nonfiction), Kindle Create is a solid free option. For more complex layouts, tools like Vellum (Mac only, $249.99 one-time), Atticus ($147 one-time), or Reedsy's free formatter handle the job with more design control.

Paperback and hardcover formatting

Physical book formatting is different from ebook formatting because you're working with fixed page dimensions. You'll need to choose a trim size (the physical dimensions of the book) and format your manuscript as a print-ready PDF.

Common trim sizes:

• 5" x 8": A smaller, compact format common for fiction
• 5.5" x 8.5": The most popular size for general fiction and nonfiction
• 6" x 9": Standard for nonfiction, business books, and self-help
• 8.5" x 11": Common for workbooks, textbooks, and coloring books

Your PDF needs proper margins (KDP's specifications vary by page count and trim size, so use their margin calculator), bleed settings if images extend to the edge of the page, and embedded fonts. KDP provides downloadable templates for every trim size, which is the easiest starting point.

Designing a cover that sells

Your cover is the single most important marketing asset for your book. It's the first thing potential buyers see, and on Amazon, where readers browse dozens of thumbnails at a time, it determines whether anyone clicks through to read your description.

What makes a good book cover

• Genre-appropriate design. Romance covers look different from business books, which look different from thrillers. Study the top 20 books in your target category and note the visual patterns: color palettes, typography styles, image types. Your cover should signal "I belong in this genre" at a glance.
• Readable at thumbnail size. Your title needs to be legible when the cover is the size of a postage stamp. That's how it appears in Amazon search results. Large, clean fonts with high contrast against the background.
• Professional quality. This is not the place to save money. A bad cover tells readers the content inside is also amateur. Budget at least $100-500 for a professional cover, or use a premium pre-made cover from a designer.

Where to get covers made

• Professional cover designers: 99designs, Reedsy marketplace, or vetted Fiverr freelancers. Expect $200-600 for a custom ebook cover, more for a full wrap (paperback + ebook).
• Pre-made covers: The Book Cover Designer, GoOnWrite, and SelfPubBookCovers sell pre-designed covers for $50-150. Professional quality at a lower cost, though less unique.
• DIY: Canva's book cover templates work in a pinch, but the results rarely match professional quality. Only go this route if you have genuine design skills.

For paperbacks and hardcovers, you'll need a full cover wrap including front, spine, and back. KDP provides a cover template generator that calculates spine width based on your page count and paper type.

KDP Select vs. wide distribution

One of the biggest strategic decisions you'll make is whether to enroll your ebook in KDP Select.

What KDP Select gives you

KDP Select is an exclusivity agreement. You commit to selling your ebook only through Amazon for 90-day renewable terms. In exchange, you get:

• Kindle Unlimited (KU) enrollment: Your book becomes available to KU subscribers (who pay $11.99/month for unlimited reading). You're paid per page read, not per download. The per-page rate fluctuates but has historically averaged around $0.004-0.005 per page. A 300-page book read cover to cover earns roughly $1.20-1.50 per read.
• Kindle Countdown Deals: Time-limited price promotions that display a countdown timer and the original price (showing the discount).
• Free Book Promotions: You can make your book free for up to 5 days per 90-day enrollment period. Useful for generating reviews and visibility.

The case for going wide

"Going wide" means distributing your ebook through multiple retailers: Amazon, Apple Books, Barnes & Noble, Kobo, Google Play, and others. You give up KDP Select benefits but gain:

• Revenue diversification: You're not dependent on a single platform's algorithms and policies.
• Broader reach: Readers outside the Amazon ecosystem (which is substantial internationally).
• No exclusivity lock-in: You control where and how your book is sold.

Aggregator services like Draft2Digital and PublishDrive make wide distribution manageable. You upload once, and they distribute to multiple retailers, taking a small percentage (typically 10%) of each sale.

Which should you choose?

There's no universal answer. For most first-time authors in genre fiction (romance, sci-fi, fantasy, thriller), KDP Select often generates more income because Kindle Unlimited readership is massive in those genres. For nonfiction, literary fiction, and authors with an established audience on other platforms, going wide often makes more sense.

You can always start in KDP Select for the first 90 days, evaluate your results, and then decide whether to stay or go wide. The enrollment auto-renews, so set a calendar reminder to make an active decision before each period ends.

Pricing strategies and royalty tiers

KDP offers two royalty options, and the one you choose significantly impacts your earnings.

The 35% royalty tier

• Available for ebooks priced between $0.99 and $1.99 (or above $9.99)
• You earn 35% of the list price
• No delivery cost deduction
• Available in all KDP marketplaces

The 70% royalty tier

• Available for ebooks priced between $2.99 and $9.99
• You earn 70% of the list price, minus a small delivery cost (based on file size, typically $0.01-0.06)
• Your price must be at least 20% below the lowest physical list price of the book
• Available in select marketplaces (US, UK, DE, FR, ES, IT, NL, JP, BR, MX, CA, IN, AU)

The math makes the 70% tier overwhelmingly better for most books. Here's how the two tiers compare at different price points:

• $0.99 list price: 35% royalty = $0.35 | 70% royalty = N/A
• $2.99 list price: 35% royalty = $1.05 | 70% royalty = $2.09
• $4.99 list price: 35% royalty = $1.75 | 70% royalty = $3.49
• $9.99 list price: 35% royalty = $3.50 | 70% royalty = $6.99
• $14.99 list price: 35% royalty = $5.25 | 70% royalty = N/A (must use 35%)

The sweet spot for most ebooks is $2.99-$4.99 for fiction and $4.99-$9.99 for nonfiction. Pricing below $2.99 only makes sense as a temporary promotion strategy or for short works (under 100 pages).

For paperbacks, KDP uses a different calculation: list price minus printing costs, multiplied by 60%. Printing costs depend on page count, ink type (black and white vs. color), and marketplace. A 200-page black-and-white paperback in the US costs about $3.19 to print, so a $12.99 list price would net you ($12.99 - $3.19) x 0.60 = $5.88 per sale.

Choosing categories and keywords

Where your book appears in Amazon's store directly affects its visibility. You can select up to three browse categories and seven keyword phrases during the publishing process.

Categories

Amazon has thousands of browse categories, and the right ones put your book in front of readers who are actively looking for your type of book. Some tips:

• Be specific. "Nonfiction > Business & Money > Marketing & Sales > Marketing > Web Marketing" is better than just "Nonfiction > Business" because there's less competition and you have a better chance of ranking.
• Check category competition. Search Amazon for books in your target category. Look at the bestseller rank of the #1 and #20 books. If the #1 book has a rank of 500,000, it's a low-competition category, making it easier to hit bestseller status.
• You can request additional categories. After publishing, you can contact KDP support to add your book to up to 10 total categories. This is a legitimate and commonly used strategy.

Keywords

Your seven keyword slots are crucial for discoverability. Each slot can hold a phrase of up to 50 characters. Think of them as search terms buyers might type into Amazon's search bar.

Effective keyword strategies:

• Use phrases, not single words: "personal finance for beginners" not just "finance"
• Include alternate descriptions: "thriller" and "suspense" and "mystery"
• Add comparable author names or book names (this is allowed by Amazon's TOS)
• Include relevant sub-topics: For a book on meditation, include "stress relief," "mindfulness practice," "anxiety management"

Tools like Publisher Rocket ($199 one-time) can show you actual Amazon search volumes for keywords, which removes the guesswork.

Your launch strategy

Publishing your book is the easy part. Getting people to buy it in the first week requires a plan.

Pre-launch (2-4 weeks before)

1. Build an advance reader team. Reach out to friends, social media followers, newsletter subscribers, or genre-specific reader groups. Offer free advance copies in exchange for honest reviews on launch day.
2. Set up your Amazon Author Central page. This is your author profile on Amazon. Add a bio, photo, and links to your website or social media. It adds credibility.
3. Create a pre-order (optional). KDP allows ebook pre-orders up to 90 days before your release date. Pre-orders count toward your launch day sales rank.
4. Prepare promotional materials. Cover reveal graphics, excerpt quotes, and social media posts should all be ready before launch day.

Launch week

1. Publish and verify. Your book typically goes live within 72 hours of clicking Publish. Check that everything looks right on the product page. Preview the ebook and verify the description formatting.
2. Activate your review team. Ask your advance readers to post their reviews during the first few days. Early reviews are critical for social proof and Amazon's algorithm.
3. Promote across your channels. Email list, social media, blog, podcast appearances, relevant Facebook groups or Reddit communities. Concentrate your promotional efforts into a tight window to spike your sales rank.
4. Consider a promotional price. Launching at $0.99 (if in KDP Select) can generate volume that pushes you up the charts. Raise the price after the initial surge.

Post-launch

Don't disappear after launch week. Amazon's algorithm favors consistent sales over spikes followed by silence. Continue promoting through your email list, social media, Amazon Ads (start with $5-10/day and optimize), and guest appearances on podcasts and in other authors' newsletters.

Selling direct to readers

Here's something successful self-published authors figure out eventually: Amazon gives you access to the world's largest bookstore, but it also takes a significant cut and keeps the customer relationship.

On a $4.99 ebook, you earn $3.49 through KDP. On a direct sale through your own checkout, you keep nearly everything after payment processing fees. That's a meaningful difference when multiplied across hundreds or thousands of sales.

Direct sales work especially well for:

• Supplementary materials: Workbooks, companion guides, templates, and bonus content that pairs with your book
• Premium editions: Signed digital copies, annotated versions, or bundles that include extras
• Series bundles: Selling a complete series at a discount, direct to readers who already know they love your work

Platforms built for selling ebooks directly let you sell digital products such as ebooks, workbooks, audio files, and video courses through a simple checkout that you can link from your website, email list, or social media. You handle the relationship. The reader becomes your customer, not Amazon's. If you want to make that part of your business model, compare creator pricing and platform features for digital delivery before you set up the store.

This doesn't mean abandoning KDP. The strongest strategy uses Amazon for discoverability (where readers find you) and direct sales for maximizing revenue from your existing audience (readers who already know your name).

Common KDP mistakes to avoid

After walking through how to publish a book on Amazon, here are the pitfalls that trip up the most first-time authors:

• Skipping professional editing. Readers notice typos, awkward sentences, and plot holes. At minimum, hire a proofreader ($200-500 for a full-length book). For nonfiction or complex fiction, a developmental editor is worth the investment.
• Ignoring the product page. Your book description is ad copy. It should hook the reader, create intrigue, and compel a purchase. Don't write a bland summary. Write a pitch.
• Pricing too low permanently. A $0.99 price tag signals "not worth much" to many readers. Use low pricing strategically for launches and promotions, not as your default.
• Publishing one book and waiting. The authors who earn consistently from KDP publish multiple books. Each new title drives sales of your backlist. If you're writing a series, the effect compounds.
• Neglecting your metadata. Categories, keywords, and your book description are the levers you can adjust after publishing. Revisit them regularly based on what's working.

Making KDP work long-term

Self-publishing on Amazon is a long game. Most authors don't hit their stride until their second or third book. The platform rewards consistency, quality, and strategic thinking.

Your first book teaches you the process. Your second book teaches you the marketing. By your third, you start seeing the compounding effect: each new release drives readers back to your earlier work, and your income becomes more predictable.

The authors earning six figures through KDP are more consistent publishers, more strategic marketers, and they treat their author career like a business. Every piece of this, from formatting to covers to keywords to launch strategy, is learnable. And once you know how to publish a book on Amazon, you can repeat the process as many times as you have books to write.

But the smartest authors don't put all their eggs in Amazon's basket. KDP gives you reach, and that's invaluable for getting discovered. But when a reader already knows your name, sending them to Amazon means giving up a chunk of your royalties and handing over the customer relationship. You don't get that reader's email address. You can't message them when your next book launches. Amazon becomes the middleman between you and your biggest fans.

The math tells the story. On a $9.99 ebook, KDP's 70% royalty tier pays you about $6.99 after delivery costs. Sell that same ebook direct through a platform like SendOwl, and you keep roughly 97% after payment processing, which works out to about $9.69. That's nearly $3 more per sale, and the gap gets wider at lower price points where KDP drops you to the 35% tier. Multiply that difference across your backlist and an engaged reader base, and direct sales become a serious revenue channel.

There's also the flexibility that Amazon will never give you. Selling direct lets you bundle your ebook with a companion workbook, an audio version, a video course, or a set of templates, all in a single checkout. You own the customer's email address, so you can notify them the moment your next book drops instead of hoping Amazon's algorithm surfaces it. And if Amazon ever changes its terms, adjusts its royalty structure, or deprioritizes your category, your direct channel keeps generating income regardless. KDP for discovery, your own store for everything else. That's the model that gives you both reach and control.

SendOwl makes selling ebooks, workbooks, and bonus content simple. Upload your files, set your prices, and share links anywhere you connect with your audience. Get started selling digital products for free today.