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Expert guides on Amazon KDP, self-publishing, and AI-assisted book publishing by Gundi Gabrielle.

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All Posts (31)KDP UpdatesAmazon KDP Guidelines & Compliance (21)Amazon Algorithm (10)Case Studies (5)AI Book Publishing (5)Amazon KDP Publishing Guide (3)KDP Pre-Orders (2)KDP Title Limits (1)KDP Select Fund (1)Kindle Devices (1)ACX Audiobooks (1)Amazon Book Pages (1)KDP Royalties (1)
Case study cover by Gundi Gabrielle of Golden Bestseller Empire: author Philipp Humm holding his book Public Speaking with Confidence, next to his bestselling book The StorySelling Method
Case Studies

Case Study: #1 Bestselling Author Philipp Humm From Newbie to 1M+ Followers and Leading Storytelling Expert

How Philipp Humm followed my course as a complete beginner with no following, wrote a bestselling book, and built an audience of over 1 million followers.

12 min read

Case study cover by Gundi Gabrielle of Golden Bestseller Empire: author Cara Bramlett, PA-C, holding her book Servant Leadership Roadmap, next to her real $102,205.81 KDP Royalties Estimator screenshot
Case Studies

Case Study: 6-Figure Bestselling Author & Clinical Director Cara Bramlett From Never Written a Book to $100,000+ in Book Royalties - Completely on Autopilot

How Cara Bramlett, a physician assistant with no following, found an underserved niche in medical leadership, wrote a bestselling book, and became a 6-figure author with over $100,000 in book royalties.

11 min read

Case study cover by Gundi Gabrielle of Golden Bestseller Empire: breast cancer survivor and bestselling author Stephanie Ewing holding her book The Shower Habit
Case Studies

Case Study: #1 Bestselling Author Stephanie Ewing Breast Cancer Survivor & Author of "The Shower Habit"

How Stephanie Ewing turned her breast cancer recovery into The Shower Habit, a book that's still a #1-2 bestseller years later, and grew it into a full habit-book series.

10 min read

Case study cover by Gundi Gabrielle of Golden Bestseller Empire: author Ramesh Dontha holding his Agile Entrepreneur Series books The 60 Minute Startup, The 60 Minute Podcast Startup and The 60 Minute Tech Startup, next to his Readers' Favorite Gold Medal Book Award
Case Studies

Case Study: #1 Bestselling Author Ramesh Dontha From Entrepreneur & Professor to Gold Medal Winner

How Ramesh Dontha, an entrepreneur and professor, turned The 60 Minute Startup into an Amazon #1 bestseller and a Gold Medal-winning book, then used it to launch a Top 500 business podcast.

7 min read

AI Book Publishing

AI-Assisted vs AI-Generated Books on Amazon KDP: The Difference

What Amazon KDP counts as AI-generated and what counts as AI-assisted, with KDP's own definitions, examples and what you must disclose.

4 min read

What is a knowledge graph for a book guide cover by Gundi Gabrielle of Golden Bestseller Empire, showing your book at the center of a whiteboard map connected to topics, readers, concepts, related books, keywords, use cases and categories
Amazon Algorithm

What Is a Knowledge Graph for a Book? A Plain-English Guide for Authors

A knowledge graph for a book is a simple map of who it's for, what it does and when it's used. Here's what it is, why Amazon cares, and how to build yours.

12 min read

Knowledge graph vs keywords infographic by Gundi Gabrielle of Golden Bestseller Empire, comparing a narrow list of keywords with a knowledge graph connecting your book to concepts, people, topics, genres, emotions and problems
Amazon Algorithm

Knowledge Graph vs Keywords: Why Keywords Alone Aren't Enough on Amazon Anymore

Knowledge graph vs keywords on Amazon, in plain English: what each one does, why Amazon says search is not just matching keywords anymore, and how to use both. The seven backend keywords are only a small help.

14 min read

COSMO relations for books guide cover by Gundi Gabrielle of Golden Bestseller Empire, showing your book in the center of a web of connected ideas like people, topics, keywords, genres, emotions, problems and use cases
Amazon Algorithm

COSMO Relations for Books: All 15 Explained (Plus the 3 Extra Ones for Authors)

The 15 COSMO relations from Amazon's paper explain why people buy. Here is each one in plain words, with the paper's example and what it looks like for a book.

12 min read

COSMO and Alexa for Shopping guide cover by Gundi Gabrielle of Golden Bestseller Empire, showing a kitten with an Alexa speaker and a reader asking Alexa to find books about mindset for women beside stacked books and a checklist notebook
Amazon Algorithm

COSMO and Alexa for Shopping: How They Work Together

COSMO figures out what a shopper means. Alexa for Shopping talks to them about it. Here is how COSMO and Alexa for Shopping fit together, in plain English, and what to do as an author.

12 min read

Amazon COSMO algorithm guide cover by Gundi Gabrielle of Golden Bestseller Empire, showing a knowledge graph with your book at the center connected to topics, related books, search queries, concepts, reader intent and categories
Amazon Algorithm

Amazon COSMO Algorithm: What It Is and How Authors Can Use It

The Amazon COSMO algorithm maps why people buy. Here is what it is, what Amazon's own paper shows, and how to use it for your book, in plain English.

13 min read

Case study cover by Gundi Gabrielle of Golden Bestseller Empire: #1 bestselling author, podcaster and marketing agency owner Kris Ward holding her book Win the Hour, Win the Day!
Case Studies

Case Study: #1 Bestselling Author Kris Ward Podcaster & Marketing Agency Owner

How Kris Ward, a podcaster and marketing agency owner, used Gundi Gabrielle's course to publish Win the Hour, Win the Day! and ride Amazon's algorithm to roaring sales.

6 min read

Amazon KDP algorithm guide cover by Gundi Gabrielle of Golden Bestseller Empire, showing a diagram of keywords, sales, COSMO, Alexa for Shopping and a knowledge graph around KDP A10 on a laptop beside a stack of books and a checklist notebook
Amazon Algorithm

Amazon KDP Algorithm: How It Works in 2027 (Amazon's New AI Algorithm Explained)

How the Amazon KDP algorithm works in 2027: keywords and sales, COSMO, Alexa for Shopping, and how a knowledge graph gets your book found.

14 min read

Amazon ranking factors guide cover by Gundi Gabrielle of Golden Bestseller Empire, showing a board of what the algorithm looks at: sales, conversion, relevance, reader engagement and reviews, beside stacked books and a checklist notebook
Amazon Algorithm

Amazon Book Ranking Algorithm: What Really Moves Your Book Up

The Amazon book ranking algorithm in plain English: what KDP says counts, what Best Sellers Rank really measures, and what you can do about it.

13 min read

Amazon A10 algorithm guide cover by Gundi Gabrielle of Golden Bestseller Empire, showing sales, conversion and relevance on a laptop beside a stack of books labeled plan, research, write, publish and grow
Amazon Algorithm

Amazon A10 Algorithm for Authors: How It Ranks Your Book

The Amazon A10 algorithm decides which book shows up first. Here is how it works, where COSMO fits in, and what to do about it.

11 min read

Alexa for Shopping guide for authors by Gundi Gabrielle of Golden Bestseller Empire, showing a chat where a reader asks Alexa to find books about building confidence for women and gets book suggestions
Amazon Algorithm

Alexa for Shopping for Authors: What Changed and What to Do

Alexa for Shopping replaced Rufus on May 13, 2026. Here is how it works for books and exactly what to put in your listing so readers get pointed to you.

13 min read

AI in book publishing guide cover by Gundi Gabrielle of Golden Bestseller Empire, showing stacked books labeled plan, write, edit, publish and grow beside a laptop with an Amazon KDP checklist: allowed with disclosure, human authorship required, follow copyright rules
AI Book Publishing

AI in Book Publishing: What Authors Need to Know Before They Publish

AI in book publishing is legal, allowed on Amazon KDP, and works best when AI assists and you write. Here is what the rules say and how Amazon's new algorithm fits in.

12 min read

AI-generated books and the Amazon algorithm guide cover by Gundi Gabrielle of Golden Bestseller Empire, comparing a generic book that rarely sells with a specific book that ranks and sells
Amazon Algorithm

AI-Generated Books and the Amazon Algorithm: Why Specific Beats Generic

AI-generated books can rank on Amazon but rarely sell. Here is what KDP makes you disclose, why generic books lose, and the AI-assisted way to publish.

12 min read

KDP title limit news cover by Gundi Gabrielle of Golden Bestseller Empire, showing a weekly KDP publishing calendar with two titles marked on Monday and Tuesday, a stack of books, and a notebook reading Two Titles a Week? Let's Get It Right
KDP Title Limits

KDP's 2-Titles-Per-Week Limit: What Counts as Creating vs. Submitting

KDP now limits you to 2 new titles per format per week, with a separate 2-title limit on submitting. Here's what counts, what doesn't, and when it resets.

4 min read

Smashwords preorders versus KDP pre-orders comparison cover by Gundi Gabrielle of Golden Bestseller Empire, showing a laptop comparing 12 months with 18 months, a stack of books, and a planning checklist
KDP Pre-Orders

Smashwords Preorders vs. KDP Pre-Orders: The Side-by-Side

Smashwords now takes ebook preorders up to 12 months out, while KDP allows 18. Here's how the two compare on timing, files, and sales rank.

4 min read

KDP Select Fund guide cover by Gundi Gabrielle of Golden Bestseller Empire, showing a laptop with a Kindle Direct Publishing reports screen, stacked books, and a checklist to check earnings, review pages read, compare trends, and plan next steps
KDP Select Fund

KDP Select Fund: What to Check on the 15th

The KDP Select Fund is announced monthly, and your KENP pages are finalized near the 15th. Here's what Amazon says, what's posted, and what to check.

6 min read

New Kindle lineup 2026 cover by Gundi Gabrielle of Golden Bestseller Empire, showing several new Kindle and Kindle Paperwhite e-readers, a coffee mug, and a checklist of new devices, happier readers, and more reach
Kindle Devices

New Kindles Are Here: What the 2026 Lineup Means for Your Readers

Amazon refreshed its Kindle lineup on October 1 with edge-to-edge color and a $34.99 page-turn remote. Here's what it means for authors and their readers.

4 min read

ACX royalty model update cover by Gundi Gabrielle of Golden Bestseller Empire, showing headphones on a stack of books, a laptop with the ACX logo, and a checklist to check dates, understand your options, plan ahead, and keep your royalties
ACX Audiobooks

ACX's Old Audiobook Royalty Model Ends This Year: What to Do Before It Does

ACX is retiring its legacy royalty model by the end of the year. The new model pays 50% exclusive and 30% non-exclusive. Here's what changes and what to do.

4 min read

Can you publish AI books on Amazon KDP guide cover by Gundi Gabrielle of Golden Bestseller Empire, showing a kitten with glasses on a stack of books, a laptop, and a checklist to be clear, be honest, and be confident about AI-generated versus AI-assisted disclosure
AI Book Publishing

Can You Publish AI Books on Amazon KDP? What You Must Disclose

Yes, you can publish AI books on Amazon KDP if you follow the rules. Here's the difference between AI-generated and AI-assisted work, and exactly what to disclose.

10 min read

Amazon book page and AI shopping guide cover by Gundi Gabrielle of Golden Bestseller Empire, showing a laptop with a sample book page, stacked books, and a checklist to optimize, update, get found, sell more, and keep growing
Amazon Book Pages

Is Your Amazon Book Page Ready for AI Shopping?

Amazon's shopping assistant now answers questions and compares products in the search bar. Here's what that means for your Amazon book page, and what to check.

7 min read

Frankfurt Appeal on AI training cover by Gundi Gabrielle of Golden Bestseller Empire, showing a Frankfurt Book Fair sign, a globe, a stack of books labeled authors, publishing, and AI and rights, and a checklist of key topics for indie authors
AI Book Publishing

The Frankfurt Appeal: What Publishers Want on AI Training, and What It Means for Indie Authors

German publishers opened the Frankfurt Book Fair with an appeal on AI training data. Here's what they're asking for and what it means for indie authors.

4 min read

AI detectors sourced guide cover by Gundi Gabrielle of Golden Bestseller Empire, showing a laptop with an AI content detector screen, stacked books labeled research, outline, write, cite, edit and publish, and a checklist to verify sources and write authentically
AI Book Publishing

AI Detectors: What's Actually Sourced

Pangram claims a tiny false-positive rate, and Epoch AI's independent test found misses on imitation. Here's what each source measured, and what it means for authors.

6 min read

What is Amazon KDP beginner guide cover by Gundi Gabrielle of Golden Bestseller Empire, showing a laptop, a stack of books labeled ideas, knowledge, and real impact, and a checklist to learn, write, publish, and share
Amazon KDP Publishing Guide

What Is Amazon KDP? Kindle Direct Publishing Explained for Authors

What is Amazon KDP? Kindle Direct Publishing explained in plain English: what you can publish, how authors get paid, KDP Select, ISBNs, and the AI rules.

10 min read

How to publish on KDP step-by-step guide cover by Gundi Gabrielle of Golden Bestseller Empire, showing four steps, prepare, set up, upload, and publish, with a notebook and a stack of books labeled plan, write, publish, and grow
Amazon KDP Publishing Guide

How to Publish on KDP: A Step-by-Step Guide for Beginners

How to publish on KDP with this step-by-step guide for beginners: what you need, account setup, your first ebook, print editions, series pages, and the AI rules.

12 min read

Amazon KDP publishing guide cover by Gundi Gabrielle of Golden Bestseller Empire, showing a Kindle and a stack of books labeled idea, write, format, publish, reach readers, and build your author business
Amazon KDP Publishing Guide

Amazon KDP Publishing Guide: The Complete Walkthrough for Authors

The complete Amazon KDP publishing guide in 8 steps: find your topic, plan, build, write, grow your fanbase, prep your storefront, launch, and expand.

16 min read

KDP 18-Month Pre-Orders For Authors (September 2, 2026) — Golden Bestseller Empire
KDP Pre-Orders

KDP 18-Month Pre-Orders For Authors (September 2, 2026)

KDP raised the Kindle pre-order cap from 12 to 18 months on September 2, 2026 — the creation-date split, the new postpone math, and when a long pre-order actually helps.

7 min read

KDP's 70% Royalty Band Just Expanded to $12.99 — Golden Bestseller Empire
KDP Royalties

KDP's 70% Royalty Band Just Expanded to $12.99 — Don't Assume You're Already On It

Amazon raised the 70% ebook royalty ceiling for the first time since 2007. Here's what actually changed, the real box-set math at $10.99–$12.99, and when staying at $9.99 still wins.

6 min read

Gundi Gabrielle, "Golden Bestseller Empire" founder and Top 100 business author

Written By

Gundi Gabrielle

Top 100 Business Author · Carnegie Hall Conductor · AIPreneur

Hey, I'm Gundi, and for over a decade, I've helped thousands of everyday people turn what they know into bestselling books.

Along the way, I wrote 16 #1 bestsellers of my own — outranking authors like Simon Sinek, Tim Ferriss, Brené Brown, Robert Kiyosaki, Rachel Hollis — and helped many of my students do the same.

No traditional publisher. No massive budget. Just a slight obsession with figuring out what actually works.

Before that, I was a classical music conductor and performed at Carnegie Hall.

These days, I love traveling the world as a Digital Nomad and orchestrating busy AI Teams 🤖🎼😎. Out of that came Golden Bestseller Empire, my complete AI-Powered Publishing Studio that is now helping authors around the world.

Everything I publish here is what I actually use for my own books & brands.

Want an easier way to publish your next book?

Golden Bestseller Empire's AI publishing tools help with everything from planning to launch.

🚀 AI-Powered Publishing Studio✍️ Full Writing App🎧 Audiobook & Translation Generators🤖 AI Publishing Team🔍 Viral Topic Gap Finder📢 Ads Generator🎯 AI Marketing Automation
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