The Self-Publishing Guide

Q: Should I publish on KDP or IngramSpark?

Most indie authors use both. KDP (Kindle Direct Publishing) gives you access to Amazon, by far the largest single retail channel, and offers the KDP Select program which includes Kindle Unlimited access. IngramSpark distributes to over 40,000 retailers, libraries, and wholesalers including Barnes and Noble, independent bookstores, and international markets. Use KDP for Amazon and KDP Select exclusivity if your audience lives primarily on Amazon. Use IngramSpark for wide distribution. Many authors publish ebooks exclusively on KDP and print books wide through IngramSpark.

Q: Do I need my own ISBN?

For professional self-publishing, yes. KDP offers a free ISBN, but it lists Kindle Direct Publishing as the publisher of record, not you. If you want your own imprint name on the copyright page and in industry databases, you need to purchase your own ISBN through your country's national ISBN agency (Bowker in the US, Nielsen in the UK). A single ISBN costs around $125 from Bowker; a block of ten costs $295 and covers future titles. Each format, hardcover, paperback, ebook, requires a separate ISBN.

Q: How much does it cost to self-publish a book professionally?

A professional indie publication typically costs between $1,500 and $5,000 depending on book length and the services you hire out. The major line items are: developmental editing ($500–$2,000), copy editing ($300–$800), proofreading ($150–$400), cover design ($150–$800 from a genre specialist), and interior formatting ($50–$300 or free if you use Reedsy or Atticus yourself). ISBNs add another $125–$295. You can reduce costs by handling formatting yourself and getting cover quotes from multiple designers, but never cut the editing budget.

Q: What file format do I need for self-publishing?

For ebooks, you need an EPUB file, which both KDP and IngramSpark accept. KDP also accepts DOCX and PDF but EPUB gives you more control over formatting. For print, both platforms want a print-ready PDF for the interior and a separate print-ready PDF for the cover with bleed, trim, and spine measurements calculated to your specific page count. Tools like Vellum (Mac only), Atticus, and Reedsy Book Editor can export the correct file formats for both print and ebook from a single source document.

Q: How long does it take to go from finished manuscript to published book?

If you have a finished, edited manuscript and all your files prepared, KDP can have your ebook live within 24 to 72 hours and your print book available within 3 to 5 business days. IngramSpark takes 3 to 5 business days for ebooks and 3 to 10 days for print titles to become available in their catalog. The realistic bottleneck is not the platforms but the pre-publication work: editing, cover design, formatting, and getting an ISBN all take weeks to months. Build your launch timeline backward from your publication date with at least three months of preparation for a proper launch.

KDP, IngramSpark, ISBNs, cover design, interior formatting: everything you need to go from finished manuscript to professionally published book on your own terms.

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40%

Of Amazon book revenue goes to indie authors

70%

KDP royalty rate on ebooks priced $2.99–$9.99

40,000+

Retail and library partners via IngramSpark

Six Pillars of the Indie Publishing Stack

Platform Strategy: KDP and IngramSpark

Amazon's KDP is the starting point for almost every indie author because it provides access to the world's largest book market and the KDP Select program, which puts your ebook into Kindle Unlimited for a 90-day exclusivity window. KU can be significant income if your readers use it. IngramSpark is the industry-standard wide distribution platform, connecting your print and ebook to over 40,000 retailers, libraries, and wholesalers globally. Many authors run ebooks on KDP Select and print books through IngramSpark simultaneously, since Select exclusivity covers ebooks only. Wide distribution via IngramSpark is particularly important for print.

ISBNs and Publisher of Record

An ISBN is a 13-digit identifier that connects your book to bibliographic databases used by retailers, libraries, and distributors worldwide. If you use a free ISBN from KDP, the publisher of record in industry databases will be Kindle Direct Publishing, not your imprint. For a professional indie operation, purchase your ISBNs through your national ISBN agency and register your imprint name. Each format requires its own ISBN: hardcover, paperback, and ebook are three separate ISBNs. In the US, Bowker sells ISBNs; a block of ten ($295) covers most authors' near-term needs and costs far less per unit than singles.

Cover Design That Sells

Your cover is a sales tool, not an art project. It must signal genre in a fraction of a second at thumbnail size because that is how most readers will first encounter it. Hire a designer who specializes in your genre: romance cover designers understand romance conventions; thriller designers understand thriller conventions. Browsing bestseller lists in your category and noting which covers catch your eye is the best brief you can give a designer. Platforms like Reedsy, 99designs, and independent designers found through writing communities all offer options at various price points. Budget $300 to $800 for a professional custom cover.

Interior Formatting for Print and Ebook

Interior formatting for print means setting margins, fonts, line spacing, headers, and page numbers to professional book standards. For ebooks, it means a clean, reflowable EPUB file that renders correctly across Kindle, Apple Books, Kobo, and other e-readers. Tools like Atticus and Vellum (Mac only) let authors format both from a single source file with relatively little technical knowledge. Reedsy Book Editor is a free browser-based option that exports EPUB and print-ready PDF. If your book has complex formatting, such as illustrated nonfiction, tables, or poetry, hiring a professional formatter is worth the $150 to $300 investment.

Pricing Strategy for Maximum Revenue

KDP's 70% royalty rate applies to ebooks priced between $2.99 and $9.99 in most markets; below $2.99 you earn 35%. Most genre fiction ebooks are priced between $3.99 and $6.99. A series starter priced at $0.99 or free can drive readthrough if the other books are priced at full rate. Print royalties are calculated as list price minus printing cost and distribution cut; at standard IngramSpark trade discount, a 300-page trade paperback priced at $14.99 earns roughly $3 to $5 per copy. Ebook income typically dwarfs print income for most indie authors, so price your ebooks for volume if you are in a high-readthrough genre.

Building Your Editorial Stack

The one area where indie authors consistently underinvest is editing, and it is the one area where every dollar spent has a direct impact on reader reviews and long-term sales. A full editorial stack for a novel includes developmental editing (structure, character, pacing), copy editing (consistency, grammar, clarity), and proofreading (final error check before publication). You do not always need all three from paid professionals: a thorough critique partner and beta reader round can substitute for some developmental editing. But copy editing and proofreading by qualified professionals are not optional if you want to compete with traditionally published books in your category.

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Frequently Asked Questions

Should I publish on KDP or IngramSpark?

Most indie authors use both. KDP gives you access to Amazon and KDP Select. IngramSpark distributes to over 40,000 retailers and libraries worldwide. Many authors publish ebooks exclusively on KDP and print books wide through IngramSpark.

Do I need my own ISBN?

For professional self-publishing, yes. KDP's free ISBN lists Kindle Direct Publishing as publisher of record. To use your own imprint name, purchase ISBNs through your national agency. In the US, Bowker sells a block of ten for $295. Each format requires a separate ISBN.

How much does it cost to self-publish a book professionally?

A professional indie publication typically costs $1,500 to $5,000 depending on book length and services hired. Major line items include editing ($500–$2,000), cover design ($150–$800), interior formatting ($50–$300), and ISBNs ($125–$295). Never cut the editing budget.

What file format do I need for self-publishing?

For ebooks, you need EPUB. For print, you need print-ready PDFs for the interior and cover. Tools like Vellum, Atticus, and Reedsy Book Editor can export the correct formats from a single source document.

How long does it take to go from finished manuscript to published book?

KDP can have your ebook live within 24 to 72 hours and your print book available within 3 to 5 business days once files are ready. The realistic bottleneck is pre-publication work: editing, cover design, and formatting. Build your launch timeline with at least three months of preparation.

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