The KDP Knowledge Base

How to run profitable Amazon ad campaigns for your books — setup, bidding, targeting, and troubleshooting.

Deep dives into Amazon's ranking algorithm, conversion optimisation, and data-driven tactics for experienced authors.

How to read your KDP reports, track sales velocity, and use data to make smarter publishing decisions.

Everything you need to publish your first book on Amazon KDP — from setup to your first sale.

How PublishRank's tools work and how to get the most out of every feature.

What Best Seller Rank means, how to read it, and what BSR tells you about a book's real sales performance.

How to find, request, and optimise your Amazon book categories to maximise visibility.

Honest, feature-by-feature comparisons of every major KDP research and marketing tool.

What makes a KDP cover convert, where to get one made, and how to test it.

Niche strategy, keyword approaches, and pricing guides for every major book genre on KDP.

How to sell your KDP books beyond the US — UK, Australia, and global royalty considerations.

How to find, evaluate, and use keywords to get your books discovered on Amazon search.

How Kindle Unlimited works for authors — KENP rates, wide vs exclusive, and how to maximise page reads.

How to launch a KDP book, build rank momentum, and make the most of Amazon's new release window.

How to write titles, subtitles, descriptions, and backend keywords that convert browsers into buyers.

Proven marketing tactics for self-published authors — ads, email, social, and review strategies.

Which niches are profitable on KDP right now — coloring books, journals, puzzles, and more.

Practical answers to everyday KDP questions — payments, taxes, account issues, and updates.

How KDP royalties work, how to price your books, and how to calculate your real take-home earnings.

How to analyse competitors, estimate sales, and find gaps in any Amazon book niche.

How reviews affect Amazon ranking, how to get them ethically, and what to do about bad ones.

Honest reviews of the most popular KDP formatting, writing, and publishing software.

Long-term thinking for self-published authors — scaling, pen names, publishing cadence, and income goals.

Fixes for the most common KDP problems — poor sales, rank drops, rejections, and account issues.

How to write faster, outline better, and structure books that work for KDP's audience.