You can write a brilliant book, design a gorgeous cover, and still vanish into the noise if you get metadata wrong. Metadata is simply the structured information about your book—title, subtitle, categories, keywords, price, series info, contributor names, and so on. It's how Amazon, IngramSpark, libraries, and bookstores decide where you sit on the digital shelf, and which readers ever see you.[1]
Think of metadata as the bit where you stop being "someone who wrote a book" and start being "a product that can be discovered and bought." Unromantic, yes. Essential, also yes.
Below is a practical walkthrough, focused on self‑publishers using Amazon KDP and IngramSpark, with concrete suggestions for categories, keywords, and pricing in today's marketplace.
The Core Metadata You Must Get Right
At minimum, every self‑published book should have strong, consistent entries for:
- Title and subtitle
- Author name (and contributors)
- Book description
- Categories/genres
- Keywords
- ISBNs per format (if you're not using free ones)
- Publication/on‑sale date
- Format info (trim size, binding, print vs ebook vs audio)
- List price
Amazon KDP asks you for these in the "Book Details" and "Paperback/Hardcover Content" steps. IngramSpark collects them during Title Setup under "Metadata" or "Title Setup." Those forms are not admin busywork; they are your book's sales pitch to the algorithms.
Use exactly the same author name, title, and series info on every platform. Even minor inconsistencies (middle initial here, missing there) can split your catalog and hurt discoverability.
Titles, Subtitles, and Book Descriptions
Title and Subtitle
Your title is allowed to be art. Your subtitle is where you make it searchable.
On both KDP and IngramSpark, you can add a subtitle field. Use it to clarify genre, audience, and outcome without turning it into a spammy keyword stew. For example:
- Weak: Shadow's Edge
- Stronger: Shadow's Edge: A Dark Urban Fantasy Thriller
- Non‑fiction example: The Indie Author Compass: A Practical Guide to Self‑Publishing and Book Marketing
The key is to front‑load meaningful words—genre, audience, and hook—while still sounding like a human wrote it. IngramSpark themselves highlight subtitles as a major discoverability tool.
Description (Blurb)
Your description is doing two jobs at once:
- Convincing a human to buy.
- Feeding search engines and store algorithms.
A simple structure that works well on Amazon and anywhere else your metadata flows:
- Hook paragraph: one or two punchy sentences that frame the central conflict or promise.
- Short synopsis: 1–2 paragraphs that sketch the character, stakes, and tone (for fiction) or the reader problem and solution (for non-fiction).
- Positioning line: "Perfect for readers who enjoy… / For fans of…" or "Ideal for… [audience]."
- Call‑to‑action: "If you love X, Y, and Z, you'll devour this… Start reading now."
Weave a couple of your best search phrases (more on those soon) into that description naturally. Don't stack a list of keywords at the bottom; that's against most retailers' guidelines and looks desperate.[2]
Categories: Choosing the Right Shelves
Categories are how stores decide what "room" you're in—the difference between being hidden in "General Fiction" versus sitting in "Psychological Thrillers with Serial Killers" where your actual readers browse.
Amazon KDP Categories
KDP lets you choose categories in two ways:
- During setup, via the category picker in the dashboard.
- Indirectly, via BISAC codes and keywords (Amazon maps BISAC to its internal category tree).[4]
Best practices:
- Go as deep and specific as possible while staying honest. If your book is a time‑travel romance, "Romance → Time Travel" will outperform just "Romance → General" over time.
- Think about competition. A niche category with fewer but more targeted browsers can be better than a massive, ultra‑competitive one.
- Check the product pages of authors similar to you. Look at the "Look inside" data and the "Product details" section to see which categories they're in, then aim for adjacent (not misleading) categories that suit your book.
IngramSpark, BISAC, and Thema
IngramSpark requires BISAC codes (and allows Thema subject codes for international markets). These are industry‑standard subject classifications used by bookstores and libraries.[1]
Tips:
- Use at least two BISAC codes if allowed. One for primary genre, one for sub‑genre or angle (e.g., FICTION / THRILLERS / PSYCHOLOGICAL and FICTION / LGBTQ+ / GAY).
- For global reach (especially relevant if you're in Ireland or UK‑adjacent markets), add appropriate Thema codes and place qualifiers. That helps your book shelve correctly not just on Amazon US, but in European bookstores and library systems.[3]
Once you've picked BISAC/Thema on IngramSpark, keep your Amazon categories aligned in spirit—even if the internal labels differ. Consistency builds a coherent signal about who the book is for.
Keywords: Finding the Phrases Your Readers Actually Use
Keywords are where you stop guessing and start thinking like a reader with cold hands, a tired brain, and thirty seconds to find something good.
Broad keywords are short phrases like "romantic suspense" or "productivity." Long‑tail keywords are natural‑language phrases like "slow‑burn romantic suspense with a small‑town setting" or "productivity system for neurodivergent adults." Long‑tails have less competition and often higher buying intent.[2]
How to Build Your Keyword List
A simple process that works without paying for fancy tools:
- Start with your book specifics.
- Genre and sub‑genre: "dark academia fantasy," "domestic thriller," "trauma‑informed self‑help."
- Setting and era: "set in Dublin," "Regency England," "post‑apocalyptic Ireland."
- Protagonist and hook: "single dad," "witch detective," "burnt‑out nurse," "grumpy sunshine romance."
- Use real search behavior.
Go to Amazon's Kindle Store search bar and start typing your broad term. Note the autocomplete suggestions—that's Amazon telling you what real people search. Same trick works on Google.
- Mix broad and long‑tail.
For a typical book, aim for a mix like:
- 2–3 broad terms (e.g., "Irish crime thriller," "cozy mystery").
- 5–7 specific long‑tail phrases ("Irish crime thriller set in Cork," "female detective mystery with humour").
- Apply across platforms.
Use these phrases:
- In the KDP keyword boxes, separated sensibly.
- In the IngramSpark keyword field (they recommend 7–10 keyword phrases, separated with semicolons).
- Sparingly in your description and, where it fits, your subtitle.
Remember: you're not writing for robots; you're writing for people who are using robots. The language must sound like something a human would actually say.
Metadata Beyond the Basics: Series, Contributors, Accessibility
A few often‑ignored fields can quietly increase your reach:
- Series fields: Always link books in a series with the same series name and clear numbering (Book 1, Book 2…). Both KDP and IngramSpark support series metadata. This makes it easier for a reader who loves one book to buy the rest.[3]
- Contributors: If you have an illustrator, editor, foreword writer, or audiobook narrator with a following, add them as contributors. Their names are searchable and can bring additional traffic.[1]
- Accessibility cues: If you have large‑print editions, dyslexia‑friendly formatting, or audio description, call that out explicitly in your metadata and sometimes even your title/subtitle (e.g., "Large Print Edition"). This not only helps disabled readers, it broadens your market.[3]
Pricing in the Current Marketplace
Pricing is part metadata, part psychology, and part cold math. It lives in KDP's "Pricing & Royalty" section and in IngramSpark's pricing and discount settings—and it heavily influences both discoverability and your ability to run promotions.
Current Common Ranges
Market norms shift, but broadly you'll see:
- Fiction ebooks: about $3.99–$5.99
- Fiction paperbacks: increasingly around $13.99–$19.99, with many trade paperbacks hovering near $19.99 due to inflation and printing costs.
- Non-fiction ebooks: about $5.99–$9.99
- Non-fiction paperbacks: roughly $14.99–$19.99
- Children's picture books:
- Paperback: ~$7.99–$14.99
- Hardcover: ~$19.99–$27.99
Translate these to your local currency, but keep an eye on what your specific genre is doing on Amazon UK, Amazon EU stores, and in print via Ingram‑distributed retailers. The "ballpark" should still feel familiar to your reader.
KDP Royalty Considerations
On Amazon KDP:
- Ebooks priced between 2.99 and 9.99 in many territories are eligible for 70% royalty (minus delivery fees).
- Below 2.99 or above 9.99, you're usually at 35%.
That means pricing your ebook at, say, 0.99 might help with a short‑term promo, but as a permanent price it often leaves money on the table unless you're using it as a loss leader for a series.
For print, KDP calculates your minimum list price based on print cost and your chosen market. You can always charge more, but you cannot go below that minimum.
IngramSpark and Wide Distribution
With IngramSpark, you'll set:
- A list price in each currency/territory you want.
- A wholesale discount (often 40–55% for trade distribution).
- Returnability options.
Your real profit per copy is:
Retail price – retailer discount – print cost = what you keep.
Because IngramSpark feeds your metadata out to thousands of retailers and libraries, it's worth running the numbers carefully. A too‑low list price with a generous discount can eat your margin completely.
Simple Pricing Strategies for a First Book
You don't need an MBA; you just need to be deliberate:[5]
- Goal: Maximise readership (e.g., for a series):
- Ebook at the lower end of the 70% band (e.g., 2.99–3.99).
- Paperback priced competitively but not the absolute floor—enough to earn at least a couple of units of currency per sale.
- Goal: Premium positioning (non‑fiction, niche expertise):
- Ebook 6.99–9.99 range to signal value.
- Paperback aligned with traditionally published comps in your niche, often 16.99–22.99 equivalent.
- Goal: Launch momentum:
- Introductory launch price for a brief window (for example, ebook at 0.99–1.99, paperback a couple of units below final price), then raise to your steady‑state pricing.
- Time promos around when you can actually drive traffic (newsletter swaps, ads, social media campaigns).
A simple rule of thumb for print: aim for your retail price to be at least 2.5× the print cost, or you risk trapping yourself in a corner where discounting and wide distribution become painful.
Keeping Metadata Alive
Metadata is not a one‑time chore; it's something you can adjust as you learn.
After launch, keep an eye on:
- Are you attracting the right reviews? If readers keep saying "I expected X but got Y," your description, subtitle, or categories might be off.
- Are you seeing any traction at all? If not, try refreshing keywords or shifting to more accurate, specific categories. Both KDP and IngramSpark allow updates to these fields.
- Have trends changed? Seasonal or event‑based keywords (e.g., "Christmas romance," "BookTok spicy fantasy") can be added or retired over time to ride waves of interest without losing your core identity.
Treat metadata like you treat your craft: something you return to, tighten, and improve as you go. The story pulls readers in once they find you. Metadata is the quiet machinery that makes sure they actually can.
