Finding Hidden Amazon Categories Nobody Knows About
When you publish on KDP, you can only select 2 categories from a dropdown of about 40 options. But Amazon has over 16,000 book categories. The secret? You can email Amazon to be added to the hidden ones—and they often have far less competition.
Quick Answer
To add your book to hidden categories: Find a book already in your target category, copy the category path from its product page, and email KDP support requesting to be added. They'll typically do it within 1-2 days.
Why Hidden Categories Matter
Getting a bestseller badge in "Self-Help" requires outselling thousands of books. But in "Self-Help > Personal Transformation > Journaling"? You might only need 10 sales to hit #1.
Being a "Best Seller" triggers a visibility boost from Amazon's algorithm—regardless of which category you rank in.
How to Find Hidden Categories
- Find a competitor book in your exact niche
- Scroll down to "Product details" on their page
- Look at "Best Sellers Rank" - Each category is listed
- Click through to see the full category tree
How to Request a Category Change
Email kdp-support@amazon.com with:
- Your book's ASIN
- The exact category path you want
- A brief explanation of why your book fits
You can be in up to 10 categories total, though 3-5 targeted ones usually work best.
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Use our keyword tools to discover low-competition opportunities.
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