Table of Contents
- Introduction
- Amazon categories: what to know first
- Step-by-Step Guide to Selecting Amazon Book Categories
- Amazon categories in the UK
- Amazon categories: mistakes to avoid
- Amazon categories: tools and resources
- Amazon categories: what it costs
- FAQ: Unique Questions UK Authors Ask About Amazon Categories
Introduction
Choosing the right book category on Amazon is one of the most critical decisions an author or publisher makes. It can make or break discoverability, sales, and ultimately, the success of a book. Yet, despite Amazon being the world’s largest book retailer — and a dominant player in the UK’s booming publishing market — many authors are still fumbling with categories, making avoidable mistakes that cost them visibility and revenue.
Categories get a reader to your page. What they see when they land is the description and the A+ Content panels below it, so fix those before you pay for traffic.
I’ve spent over 25 years in e-commerce, working with everything from multi-million-pound Amazon brands to one of the UK’s leading book review platforms, LoveReading.co.uk. When I first self-published Google. Panic. Repeat., I quickly learned that selecting categories on Amazon is not straightforward, especially from a UK author’s perspective. The platform’s category system is complicated, often counterintuitive, and rife with hidden traps such as “ghost categories” and outdated metadata.
When I was formatting Google. Panic. Repeat., the biggest headache was juggling manuscript layout and metadata separately. At publishing.co.uk, we built our service to handle formatting and metadata optimisation in one go, saving authors from costly errors and delays.
This article provides a comprehensive, UK-focused, and pragmatic guide to Amazon book categories — one that goes beyond generic advice and dives deep into the nuances, costs, and strategies that matter. Whether you’re a first-time self-publisher or an experienced author looking to optimise your listings, this is the definitive resource to get it right.
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Amazon categories: what to know first
Before you jump into Amazon’s category selection screen, it’s essential to understand some basic concepts and terminology. This foundation will save hours of frustration and help you approach the process with clarity.
Amazon Book Categories: The Basics
Amazon book categories are essentially metadata tags that help place your book in relevant sections of the Amazon store. These categories determine where your book appears in search results, genre listings, and Amazon’s recommendations.
- Amazon allows you to select up to three categories for your book at title setup (per format). These must come from Amazon’s predefined list and are crucial for your book’s discoverability.
- You self-select these categories directly at title setup. The older route of emailing KDP support to be added to extra categories was retired in 2023, so plan your three category slots carefully around less-crowded niches.
- Categories are organised hierarchically, ranging from broad classifications like “Fiction” or “Non-fiction” down to very specific sub-genres such as “Historical Romance” or “Personal Finance.”
Common Terminology
- BISAC codes: Amazon categories are based on BISAC (Book Industry Standards and Communications) subject codes, a US-driven standard that doesn’t always fit UK market nuances. Understanding this is key when aligning your book with the right category.
- Ghost Categories: These are categories that do not appear in Amazon’s public category browser but can be assigned via keyword metadata or through Amazon support. Books in ghost categories often benefit from less competition but require manual intervention to access.
- Keywords vs Categories: Keywords influence search indexing and can indirectly affect category placement but are different. Categories are explicit classifications.
- Amazon Browse Tree Guide (BTG): This is Amazon’s official listing of all categories and subcategories, regularly updated and vital for category research.
Why Categories Matter
Selecting the wrong category is a costly mistake. It buries your book under millions of irrelevant titles, damages your ability to rank on bestseller lists, and wastes marketing budget. The right category not only boosts visibility but can also position your book as a front-runner in niche segments.
Step-by-Step Guide to Selecting Amazon Book Categories
Here’s a detailed walkthrough to help you navigate the selection of Amazon book categories, including how to add hidden categories.
Step 1: Research Your Genre and Competitors
Start by searching for books similar to yours on Amazon.co.uk. Note the categories where bestsellers in your niche appear. Use the Amazon Browse Tree Guide to understand category hierarchies.
Example: If you write British historical fiction, search for top sellers in that genre and note whether they appear under “Books > Fiction > Historical” or more specific subcategories like “Books > Fiction > Historical > Victorian.”
Practical tip: Use the URL of a bestseller’s Amazon page to find the exact category path. The breadcrumb trail at the top of the page often shows the category hierarchy, or scroll to the “Product Details” section where categories are listed.
Screenshot example: Amazon Browse Tree Guide highlighting UK categories for Historical Fiction and Personal Finance
Step 2: Choose Your Two Primary Categories in KDP
In your KDP dashboard, upload your manuscript and cover files. When you reach the “Paperback Details” or “Kindle eBook Details” section:
- Scroll down to the Categories dropdown menu.
- Select up to three categories most relevant to your book’s genre and content.
- Avoid overly broad categories like “Fiction” alone; aim for specific subcategories such as “Thrillers” or “Self-Help.”
- You can only choose categories from the dropdown list provided by Amazon, so thorough research beforehand is essential to find the best fit.
Exact menu path in KDP:
Dashboard > Bookshelf > Add New Title or Edit Existing Title > Paperback Details / Kindle eBook Details > Categories (scroll down)
Step 3: Use Keywords to Unlock Additional Categories
Amazon’s system sometimes indexes books in categories beyond the two primary ones based on the keywords you enter during setup. This is an often-overlooked way to access niche or “ghost” categories.
- Include keywords that correspond to specific themes, locations, or sub-genres relevant to your book.
- For example, if you write a thriller set in London, keywords like “London crime thriller” may help you appear in related subcategories.
- Be precise and avoid generic or unrelated keywords — KDP’s guidelines advise against irrelevant or repetitive keywords, which can trigger content-guideline issues.
Step 4: Request Additional Categories Manually
If you want your book listed in categories beyond the two primary ones, you must contact Amazon via your KDP dashboard’s “Contact Us” feature and request category changes.
How to do this:
- Log in to your KDP account.
- Click “Help” in the top right corner.
- Select “Contact Us.”
- Choose “Product Support.”
- Select “Categories.”
- Fill in the form with your book details, ASIN or ISBN, and the exact categories desired (using BTG category codes).
- Provide a clear justification explaining why your book fits the requested categories.
Note that Amazon retired the old email-support route for adding extra categories in 2023 — authors now self-select up to three categories directly at title setup, so for most books this manual request is no longer necessary.
Step 5: Monitor and Adjust
After publishing, keep an eye on your book’s category placements using Amazon sales rank and visibility metrics.
- Check if your book appears under the intended categories by visiting your book’s Amazon page and scrolling to the “Product Details” section.
- Use Amazon’s Best Seller Rank (BSR) in those categories as a performance indicator. How Amazon calculates it: how Amazon ranks books.
- If you notice your book is misclassified or buried, repeat Step 4 to request adjustments.
Amazon categories in the UK
Amazon’s category system is global but has a few quirks when dealing with UK authors and markets that many guides overlook.
Regional Category Variations
- Categories on Amazon.co.uk sometimes differ from Amazon.com, both in naming and structure. For example:
| US Category | UK Equivalent Category |
|---|---|
| Personal Finance | Money Management |
| Young Adult Fiction | Teen & Young Adult |
| Self-Help / Motivational | Health, Mind & Body > Self-Help |
| Cookbooks | Food & Drink |
- Always use the UK-specific Amazon Browse Tree Guide when selecting categories to ensure you are targeting the right market segment.
Chart showing differences in category names and hierarchy between Amazon US and UK stores
The UK basics, in one place: ISBNs, VAT on books, tax on book income and legal deposit. Those guides are kept up to date, so this page doesn’t repeat them.
Amazon categories: mistakes to avoid
Despite the straightforwardness of category selection on the surface, many UK authors fall into traps that limit their book’s potential.
Mistake 1: Choosing Only Broad Categories
Selecting generic categories like “Fiction” or “Non-fiction” by itself is a wasted opportunity. These categories are saturated, and your book will be lost in a sea of titles. Always go for more specific subcategories.
Mistake 2: Ignoring Ghost Categories
Many authors don’t know about ghost categories — niche categories that aren’t publicly visible but accessible via manual request or keyword metadata. Overlooking these means missing out on less competitive, high-converting segments.
Mistake 3: Relying Solely on Amazon’s Free ISBNs
Free KDP ISBNs only work on KDP and show “Independently published” as the imprint. Your choice of ISBN doesn’t decide your categories, but buy your own from Nielsen if you want your own imprint.
Mistake 4: Not Updating Categories Post-Launch
Publishing is not a set-and-forget process. Market trends shift, new categories emerge, and your initial choices may become outdated. Regularly revisiting and adjusting categories is essential.
Mistake 5: Using Irrelevant Keywords for Category Indexing
Trying to game the system by stuffing keywords unrelated to your book’s content can backfire. Amazon’s algorithms penalise keyword stuffing, leading to suppressed visibility or removal.
Mistake 6: Overpaying for Formatting Without Category Strategy
I once hired a formatter for £130 who did a passable job on the manuscript but neglected to prepare the metadata correctly for Amazon categories. The book launched with incorrect categories, leading to poor sales. This wasted time and money — and the headache could have been avoided with a service that understands the full publishing funnel.
Mistake 7: Ignoring UK Market Nuances
Many authors treat Amazon’s category system as US-centric and fail to consider UK spelling, VAT implications, and reader preferences. This disconnect can cost you discoverability and sales.
Amazon categories: tools and resources
Navigating Amazon’s category system requires more than guesswork. Here are some tools and resources that UK authors find invaluable:
Amazon Browse Tree Guide (BTG)
- The official and most comprehensive listing of Amazon categories.
- Updated quarterly and specific to each Amazon marketplace, including Amazon.co.uk.
- Downloadable PDF available from Amazon’s KDP Help pages.
KDP Dashboard
- The primary interface for category selection and metadata management.
- Use the Help > Contact Us > Product Support > Categories path to request additional categories.
- Keep a record of your category requests and their approval status.
Third-Party Metadata Management Tools
- Publisher Rocket: Popular among UK authors for keyword and category research. Costs about £148 ($199 one-off), but the insights can significantly improve category targeting and keyword strategy.
- KDP Spy: Useful for competitor analysis and category tracking.
Publishing.co.uk Formatting and Metadata Services
- While formatting services typically focus on manuscript layout, publishing.co.uk goes further by optimising metadata, including category and keyword management tailored to the UK market.
- This integration is a crucial differentiator, ensuring your book’s presentation and discoverability align perfectly.
Community and Industry Groups
- UK-based author forums and groups (e.g., Society of Authors, Alliance of Independent Authors UK) provide valuable, up-to-date insights into category trends and Amazon’s evolving policies.
- Attend industry events and webinars focused on UK self-publishing to stay ahead of changes.
Comparison matrix illustrating features and costs of major category and metadata tools
Amazon categories: what it costs
Hidden Time Costs
The time spent researching, requesting, and validating categories can easily add up to several days of valuable author time. Outsourcing this to a professional service like publishing.co.uk can be a wise investment, especially when you factor in the potential revenue lost from poor category choices.
Publishing on KDP is free; what costs money is the help you buy. Every part, with dated sources and a calculator for your own book, is in how much it costs to self-publish a book in the UK.
FAQ: Unique Questions UK Authors Ask About Amazon Categories
1. Can I use the same categories for print and Kindle versions of my book?
Yes, but it’s not mandatory. You can select different categories for print and Kindle editions depending on market behaviour. For example, some categories work better for print readers, while others perform well digitally. Always research category trends per format on Amazon.co.uk.
2. How do UK-specific spelling and terminology affect category and keyword selection?
UK spelling and terminology matter. Use British English spellings (e.g., “favourite” not “favorite”) in your keywords and metadata to align with UK reader search habits. Also, consider UK-specific place names and cultural references in your category and keyword strategy.
3. What happens if Amazon rejects my category change request?
Amazon may reject category requests if they deem them irrelevant. If this happens, review your justification and ensure your book’s content clearly fits the requested category. Sometimes rephrasing your request or providing stronger evidence (e.g., table of contents, synopsis) helps.
4. Are there any UK-specific ghost categories worth targeting?
Yes. For example, “Books > History > Europe > United Kingdom” and “Books > Travel > Europe > United Kingdom” are ghost categories often hidden from the dropdown but accessible via manual request. Targeting these can provide visibility with less competition.
5. How often should I review and update my book’s categories?
At minimum, review your categories every 6 months or when you launch a new marketing campaign. Also, check after Amazon updates their Browse Tree Guide or introduces new categories. Staying current keeps your book competitive.
6. Can I track how my book ranks in specific categories on Amazon.co.uk?
Yes. Use tools like Book Report or KDP Rocket to monitor your bestseller rank in chosen categories. Tracking helps you understand what’s working and when you need to pivot your category strategy.
Selecting the right Amazon book categories is more than ticking boxes. It’s a strategic business decision that influences your book’s visibility, sales, and long-term success. UK authors must navigate a system designed primarily for the US market while using local knowledge and data to win.
My experience formatting thousands of books and consulting major e-commerce businesses tells me this: don’t treat categories as an afterthought. Get them right from the start, and consider professional help that integrates formatting with metadata optimisation tailored for the UK. That’s the surest way to cut through the noise and reach your readers.
