Best KDP Categories for New Books (Low Competition)

The best KDP categories for new books are the ones where the top 10 bestsellers have relatively low BSRs (Best Seller Ranks above 50,000) and where you won't be competing against household-name authors. In practice, that means targeting sub-subcategories in niches like self-help journals, niche cookbooks, activity books, and specialized non-fiction rather than broad genres like "Thriller" or "Romance." Pick the right category and your book can hit a bestseller tag within the first week. Pick the wrong one and you'll be invisible on page 47 forever.

What Makes a KDP Category "Low Competition"

A low-competition category has three characteristics:

The #1 bestseller has a BSR above 30,000-50,000. This means even the top book in that category isn't selling a massive number of copies daily. You can realistically compete.
Few or no books from major publishers. If the top 10 is filled with Big Five titles, walk away. You want categories dominated by indie authors and small presses.
The category has at least 200-500 total books. Too few books means there's no real demand. Too many means you'll drown. The sweet spot sits in the middle.

A common mistake is chasing empty categories. A category with 12 books and no sales isn't "low competition." It's "no demand." There's a difference, and it matters.

Specific Low-Competition Categories Worth Targeting in 2025

Here are real category niches where new authors are consistently finding traction:

Self-Help > Journaling: Guided journals, gratitude journals, and shadow work journals continue to sell well. The category is broad enough to support new entrants but specific enough that you're not fighting against every self-help book ever written.
Cookbooks, Food & Wine > Regional & International > [Specific Cuisine]: "Mexican Cooking" is competitive. "Oaxacan Cooking" is not. The deeper you go into regional subcategories, the easier it gets.
Children's Books > Activities, Crafts & Games > Activity Books: Coloring books, maze books, word searches for kids. These have healthy demand, and the top spots turn over regularly.
Business & Money > Small Business > Home-Based: Niche business guides for specific audiences (Etsy sellers, freelance writers, mobile notaries) do surprisingly well here.
Religion & Spirituality > Devotionals: Devotional journals and prayer guides for specific demographics (new moms, teens, men) often sit in categories with BSRs above 80,000 for the #1 spot. That's very achievable.
Computers & Technology > Software-Specific Guides: Guides for specific tools (Notion, Obsidian, specific programming frameworks) land in thin categories where even modest sales push you to the top.

These aren't the only options. They're starting points. Your best category will depend on your book's actual content, not on someone else's "best niches" list.

How to Research Categories Before You Publish

Don't guess. Every category decision should be backed by data.

Start by searching Amazon for books similar to yours. Look at where they're categorized. Click into those category pages and check the BSRs of the top 20 books. Write those numbers down. If the #1 book has a BSR under 10,000, that category is probably too competitive for a brand-new book with zero reviews.

Next, check how many of those top books have over 100 reviews. A category where half the top 10 has 500+ reviews signals an established market where readers already have trusted favorites. That's a tough place to break in.

Tools like the Category Optimizer on PublishRank can speed this process up significantly. It analyzes category competitiveness and helps you identify browse nodes that match your book's content without requiring hours of manual Amazon browsing.

The Three-Category Strategy

Amazon gives you up to 3 category slots per format when you publish through KDP (ebook, paperback, and hardcover each get their own 3). Use them strategically.

Put your book in one category that's a close content match with moderate competition. This is your "relevance" pick. Amazon's algorithm will associate your book with the right audience here, which helps with also-bought recommendations and organic discovery.

Your second slot should be your "winnable" pick. A smaller, less competitive subcategory where a few sales per day can land you the orange bestseller badge. That badge creates social proof, which drives more clicks, which drives more sales. It's a flywheel.

Your third slot is a bonus pick — use it for a second winnable niche or a broader relevance category, whichever your book supports. And that's your ceiling: Amazon removed the old "contact support to request up to 10 categories" method in 2023, so those 3 per format are the max. Amazon may still auto-place your book in extra browse categories based on your keywords, but you can't request those. Don't try to force irrelevant categories — Amazon has gotten better at removing books from categories where they don't belong.

Categories to Avoid as a New Author

Some categories are traps for new books. Stay away from these unless you have an existing audience or a serious marketing budget:

Kindle Store > Romance > Contemporary: Tens of thousands of books. The top sellers move hundreds of copies daily. You'll be buried instantly.
Literature & Fiction > General: This is the catch-all dumping ground. Nobody browses here intentionally. Your book will sit in a sea of millions.
Any top-level category without a subcategory: "Self-Help" alone has over 100,000 books. "Self-Help > Stress Management > Anxiety" has a fraction of that. Always go deeper.
Categories dominated by free/KU books: If the top 10 are all Kindle Unlimited titles priced at $0.99-$2.99, competing with a $14.99 paperback is an uphill battle.

When to Change Categories

Your initial category choice isn't permanent. In fact, you should revisit it.

If your book has been live for 30 days and hasn't cracked the top 100 in either category, something's off. Either the categories are too competitive, or your book's metadata (title, subtitle, description) doesn't align with what shoppers in those categories expect.

Seasonal shifts matter too. A "Summer Cocktail Recipe" book should be in different categories in June than in December. A "Tax Preparation Guide" peaks in Q1. Adjust accordingly.

Check your category performance monthly for the first 90 days. After that, quarterly is fine unless you're running a promotion or launching a new book in the same series.

Frequently Asked Questions

How many categories can I choose for my KDP book?

You get up to 3 categories per format during the KDP publishing process (ebook, paperback, and hardcover each get their own 3), all chosen directly in the dashboard. That's the maximum — Amazon ended the "contact support to request up to 10" method in 2023 and no longer accepts requests to add or update categories. You can change your picks yourself anytime, and changes take about 24 to 72 hours to appear.

How do I find the browse node number for a KDP category?

Browse node numbers appear in the Amazon URL when you click into a category page. Look for the string "node=" followed by a number. That's the browse node ID. You can also find them by inspecting the category path in KDP's publishing dashboard. Knowing the full path (for example, Kindle Store > Kindle eBooks > Health, Fitness & Dieting > Exercise > Yoga) helps you locate the right category when you pick your three slots in the KDP dashboard.

Can I put my book in categories that don't match its content?

Technically you can select any of your three per-format categories yourself in the dashboard, but Amazon has increasingly cracked down on miscategorized books. If customers report your book as irrelevant, or if Amazon's algorithms detect a mismatch, your book may be removed from that category or flagged for review. Stick to categories where your book genuinely belongs. The short-term visibility boost isn't worth the risk.

Do KDP categories affect my book's ranking on Amazon search?

Categories don't directly affect keyword search rankings, but they indirectly influence them. When your book performs well in a category (high click-through rate, good conversion, strong sales velocity), Amazon's algorithm treats it as more relevant overall. That improved relevance can boost your visibility in keyword searches too. Think of categories as one piece of a larger discoverability puzzle.

How often should I change my KDP categories?

There's no penalty for changing categories, but constant switching prevents you from building momentum. Give each category choice at least 30 days before making changes. The exception is seasonal books or time-sensitive content, where shifting categories to match buyer intent during peak periods makes sense. For most books, quarterly reviews of category performance are enough.