ZenEbookAI Blog

Tips, guides, and insights for KDP publishers

Amazon Author Central: The Free Tool That Boosts Every Book You Publish

ENPublishingGuide7 min

Amazon Author Central is free, takes 30 minutes to set up, and improves the conversion rate of every book in your catalog. Here's what it does and exactly how to set it up.

Amazon KDP for Beginners: Everything You Need to Know Before Publishing Your First Book

ENPublishingGuide12 min

New to Amazon KDP? This beginner's guide answers every foundational question — how KDP works, what types of books sell, what it costs, and what to expect from your first publication.

Amazon KDP Rejection: Why Books Get Rejected and How to Fix Every Type

ENPublishingGuide10 min

Amazon rejected your book — now what? This guide explains every type of KDP rejection, what it means, and exactly what to fix before resubmitting.

How to Publish on Amazon KDP in 2026: The Complete Step-by-Step Guide

ENPublishingGuide15 min

Everything you need to publish your first book on Amazon KDP — from manuscript formatting to going live. No fluff, just the exact steps.

How to Write and Publish a Book on Amazon: The Complete 2026 Guide

ENPublishingGuide14 min

From first idea to live Amazon listing — this is the complete process for writing and publishing a book on Amazon KDP. Every step, in order, with no steps skipped.

ISBN for Self-Publishing: Do You Need One and How to Get It on KDP?

ENPublishingGuide8 min

ISBNs for self-published books: what they are, whether you need one, how KDP's free ISBN compares to purchasing your own, and when each option makes sense.

KDP Account Setup: How to Create and Configure Your Amazon KDP Account

ENPublishingGuide7 min

Setting up your KDP account correctly from the start prevents payment delays and publishing roadblocks. Here's the complete account setup process — tax interview, banking, marketplace settings, and common mistakes.

KDP Account Suspended: Why It Happens and How to Appeal

ENPublishingGuide7 min

A suspended KDP account stops all royalty payments and removes your books from Amazon. Here's why suspensions happen, which ones are reversible, and the exact appeal process that works.

KDP Book Formatting: How to Format Your Interior for Print (The Right Way)

ENPublishingGuide9 min

KDP paperback formatting has specific requirements that trip up most new publishers. Here's the exact process — margins, fonts, images, page setup — to produce a print-ready PDF that passes KDP's review without errors.

KDP Children's Books: How to Self-Publish a Children's Book on Amazon

ENPublishingGuide9 min

Self-publishing children's books on Amazon KDP requires understanding both the creative and technical requirements unique to this format. Here's the complete guide — from manuscript to live listing.

KDP Copyright Page: What to Include and a Ready-to-Use Template

ENPublishingGuide5 min

Every KDP book needs a copyright page. Here's exactly what to include, what's legally required vs. optional, and a copy-paste template for paperbacks and eBooks.

KDP Expanded Distribution: Is It Worth Enabling for Your Books?

ENPublishingGuide6 min

KDP's Expanded Distribution puts your paperback in bookstores, libraries, and academic channels — but at a lower royalty rate. Here's when to enable it and when to skip it.

KDP Hardcover: When to Add a Hardcover Edition and How to Price It Right

ENPublishingGuide7 min

Amazon KDP's hardcover option adds a premium tier to your catalog with no upfront cost. Here's when hardcovers make financial sense, how to produce them, and how to price for profit.

KDP Interior Design: 10 Layout Principles That Make Your Book Look Professional

ENPublishingGuide7 min

The interior of your KDP book determines whether buyers feel they got value — or whether they leave a 1-star review. Here are 10 layout principles that separate professional KDP interiors from amateur ones.

KDP Paperback vs eBook: Which Format Should You Publish First?

ENPublishingGuide7 min

Paperback and eBook formats have different royalty structures, different buyer behaviors, and different production requirements. Here's how to decide which to launch first — and why most publishers should do both.

KDP Pen Names: How to Use Pseudonyms on Amazon KDP (and Why Most Publishers Do)

ENPublishingGuide7 min

Most successful KDP publishers use pen names. Here's why, how to set up pen names on KDP correctly, and how to manage multiple pen names across different niches.

KDP Proof Copy: How to Order, Review, and Approve Your Book Before Launch

ENPublishingGuide7 min

A KDP proof copy is the most important quality check before your book goes live. Here's exactly how to order one, what to check, and how to fix what you find.

KDP Select and Kindle Unlimited: Is the Exclusivity Worth It in 2026?

ENPublishingGuide9 min

KDP Select gives you access to Kindle Unlimited and promotional tools — but it requires 90-day Amazon exclusivity. Here's how to decide if it's worth it for your specific book.

KDP Spine Width: How to Calculate It and Design Your Cover Correctly

ENPublishingGuide7 min

KDP spine width is determined by your page count and paper type. Here's the formula, the Cover Calculator, the design rules, and how to avoid the most common spine mistakes.

KDP Spine Width: How to Calculate It and Design Your Cover Correctly

ENPublishingGuide7 min

KDP spine width is determined by your page count and paper type. Here's the formula, the Cover Calculator, the design rules, and how to avoid the most common spine mistakes.

KDP Trim Sizes: Which Book Size to Choose for Your Paperback

ENPublishingGuide6 min

Trim size determines your book's physical dimensions, printing cost, and buyer perception. Here's which KDP trim size to choose for journals, guides, activity books, and fiction — with the tradeoffs for each.

KDP vs IngramSpark: Which Self-Publishing Platform Is Right for You in 2026?

ENPublishingGuide11 min

KDP and IngramSpark serve different self-publishing goals. Here's a direct comparison of royalties, distribution, print quality, costs, and when to use each — or both.

Kindle eBook Formatting: How to Format Your Book for KDP Kindle Upload

ENPublishingGuide8 min

Kindle eBook formatting is different from print. Here's exactly how to prepare your manuscript for KDP Kindle — from Word documents to properly formatted EPUB files — so your book looks great on every device.

Kindle Publishing: The Complete Guide to Publishing eBooks on Amazon in 2026

ENPublishingGuide11 min

Kindle publishing lets you reach millions of readers with no upfront cost and up to 70% royalties. Here's everything you need to know about publishing eBooks on Amazon — from formatting to pricing to Kindle Unlimited.

Print on Demand Books: How KDP's POD System Works and What to Expect

ENPublishingGuide10 min

Print on demand through KDP means no inventory, no upfront printing costs, and no warehouse. Here's exactly how KDP's POD system works — quality, economics, logistics, and what publishers should know.