KDP is a business of details. Getting 90% right isn't enough if the 10% you get wrong gets your account banned or ignores Amazon's algorithm.
Thousands of people start KDP every month. Most quit within 60 days. Why? Because they make avoidable mistakes that kill their momentum. Here are the 7 most critical mistakes we see beginners make every day.
1. Copyright Infringement (The Account Killer)
The Mistake: You see that "Bluey" or "Taylor Swift" is trending, so you make a "Taylor Swift Word Search."
The Reality: This is the fastest way to get a lifetime ban. Amazon's bots scan for trademarks constantly. It doesn't matter if "everyone else is doing it." They will get caught eventually. You want a business that lasts for years, not weeks.
The Fix:
1. Never use trademarked names, characters, or logos.
2. Stick to "Public Domain" themes (e.g., "Greek Mythology," "Space," "Dinosaurs").
3. Check every title on USPTO.gov before you publish.
2. Ignoring Bleed Settings (The Quality Killer)
The Mistake: You upload a 6x9 PDF for a 6x9 book, but your images touch the edge of the page. Amazon rejects it, or worse, prints it with a weird white strip.
The Fix: If any ink touches the edge of the page (like a full-page
pattern), you must add 0.125" (3.2mm) to the top, bottom, and outside width of your PDF.
If you don't want to do math, use KDPForge generators which calculate bleed
automatically.
3. Bad Cover Design (The Sales Killer)
The Mistake: Designing your own cover in MS Paint or using a generic KDP template.
The Reality: People 100% judge a book by its cover. If your cover looks amateur, they assume the puzzles inside are amateur too.
The Fix:
1. Concept: Look at the top 10 bestsellers in your niche. What colors do they
use? What fonts?
2. Legibility: Your title must be readable when the image is the size of a
postage stamp (mobile view).
3. Preview: Put a screenshot of your puzzle grid ON the cover. Show them what
they are buying.
4. Keyword Stuffing (The Shadowban)
The Mistake: Subtitle: "Sudoku Puzzle Book for Adults Kids Men Women Fun Game Activity Gift 2026 Best Selling."
The Reality: Amazon hates this. It looks spammy to customers and confuses the algorithm. It can lead to your book being suppressed (hidden from search).
The Fix: Keep your subtitle natural. "100 Hard Sudoku Puzzles to Train Your Brain". Put the other keywords in the 7 backend keyword slots where customers can't see them.
5. Publishing "Lookalike" Content
The Mistake: Downloading a free "100 Sudoku Puzzles" PDF from a PLR (Private Label Rights) site and uploading it without changes.
The Reality: Amazon blocks duplicate content. If 500 other people uploaded that exact same file, Amazon will reject yours.
The Fix: You must create unique interiors. Mix and match puzzles. Change the fonts. Add "Belongs To" pages. Add custom instructions. KDPForge generates unique puzzles every time, so no two users ever have the same content.
6. Not Ordering a Proof Copy
The Mistake: Hitting publish without seeing the physical book.
The Reality: You don't know if your margins are too tight, if your gray lines are too faint to see, or if the cover colors look muddy until you hold it.
The Fix: Always order a proof copy. It costs ~$2.50. It is the cheapest insurance policy for your reputation. One bad review saying "Unreadable!" will kill a book forever.
7. Skipping the Solutions
The Mistake: Publishing a puzzle book without answer keys because "it makes the book too thick" or "it takes too long."
The Reality: Customers get furious when there are no solutions. It guarantees 1-star reviews.
The Fix: Always include solutions. You can fit 4, 6, or 9 per page to save space. KDPForge automatically generates and formats solutions for every puzzle type.
Build a Sustainable Business
Avoiding these mistakes puts you ahead of 90% of publishers. Most people want "get rich quick." KDP is "get rich consistently."
Focus on quality, originality, and obeying Amazon's rules, and you'll build a long-term asset that pays you royalties for years.