Ever sat on a long flight or a rainy Sunday afternoon, staring at a Sudoku book, and thought, “I could probably make something like this”? It sounds like a wild dream, but there is a massive, quiet economy happening on Amazon right now. People are constantly searching for ways to unplug, and puzzle books—ranging from word searches to logic grids—are the perfect solution. The best part? You don’t need to be a math genius or a professional illustrator to get started.
Selling puzzle books through Amazon Kindle Direct Publishing (KDP) is a low-risk way to build a passive income stream. Unlike a traditional retail business, you don”t have to hold inventory or ship packages yourself. Amazon handles the printing and the logistics; you just provide the content. If you are looking for a beginner friendly way to enter the world of e-commerce, this is a solid place to start.
What does the business model actually look like?
When we talk about selling puzzle books, we are talking about Print on Demand (POD). When a customer clicks “buy” on Amazon, Amazon receives the order, prints a single copy of your book, and ships it to the customer. They then deduct the printing costs and a portion of the sale from your account, leaving you with a royalty.
Let’s talk numbers, because that is why you are here. Most people starting this as a side hustle can expect to earn anywhere from $50 to $500 per month per book once they find a niche. It is not a “get rich quick” scheme. It takes time to build a catalog. However, compared to a vs traditional job, the upside is that your earnings aren’t capped by your hourly rate. Once a book is live, it can sell while you sleep.
The initial startup cost
One of the biggest draws here is the low barrier to entry. Your startup cost can be as low as $0 if you use free tools, or around $100 if you decide to invest in premium software. Here is a rough breakdown of potential expenses:
- Canva (Free or Pro): $0 – $12/month for designing covers and interior layouts.
- Amazon KDP Account: $0. It is free to sign up and upload.
- Research Tools (e.g., Helium 10 or Publisher Rocket): $0 – $97/month. These help you find out what people are actually searching for.
lack of Puzzle Generators (e.g., Book Bolt or Puzzle Wiz): $15 – $50/month. These tools do the heavy lifting of creating the actual puzzles.
Step 1: Finding your niche
The biggest mistake new creators make is making a “General Puzzle Book.” If you compete with the giants, you will get buried in the search results. You need to find a specific corner of the market. Instead of “Word Search for Adults,” think “Word Search for Garden Lovers” or “Sudoku for Seniors with Large Print.”
Finding a niche requires some digging. You want to look for topics that have high demand but low competition. Use the Amazon search bar to see what auto-fills. If you type “Word Search for…” and Amazon suggests “Word Search for Nurses,” you have found a potential goldmine. This is where you identify a specific audience with specific interests.
How to validate your idea
Before you spend hours creating puzzles, check the competition. Look at the Best Seller Rank (BSR) of similar books. A low BSR (usually under 100,000) means the book is selling regularly. If you see several books in a specific niche with good BSRs, that is your green light to move forward.
Step 2: Creating the content
You don’t need to manually draw every word search grid. That would take months. Instead, use specialized software. Tools like Book Bolt or Puzzle Wiz allow you to input a list of words, and the software instantly generates the grid for you. This turns a task that would take weeks into something you can finish in an afternoon.
Once you have your puzzles, you need to arrange them into a cohesive book. This is where Canva comes in handy. You can create a standard 8.5″ x 11″ document and place your puzzle images onto the pages. Don’t forget to include an answer key at the back of the book. A book without answers is a recipe for one-star reviews.
Designing a cover that sells
Your cover is your only salesperson. If it looks amateurish, people will scroll right past it. A good cover should be clear, colorful, and communicate exactly what is inside. If it is a “Large Print” book, make sure that is prominent on the cover. Use high-quality imagery and legible fonts. You don’t need to be a graphic designer, but you do need to follow the “rules” of what looks professional in your specific niche.
Step 3: Uploading to Amazon KDP
Once your PDF is ready, it is time to head to the KDP dashboard. This part can feel intimidating because of all the technical jargon, but it is quite straightforward once you do it once. You will need to provide:
- Book Title and Subtitle: Use keywords that people actually search for.
- Description: Write this like you are talking to a friend. Tell them why this book is great for a gift or a relaxing afternoon.
- Keywords: You get seven slots. Use these for descriptive phrases, not just single words.
- Categories: Choose the most relevant categories so Amazon knows who to show your book to.
The time investment for a single book, once you have the workflow down, is roughly 5 to 10 hours. This includes research, creation, and uploading. As you get faster, you can scale this up significantly.
Managing your business long-term
Success in KDP is a volume game. You likely won’t hit a home run with your first book. The goal is to build a library of 20, 50, or even 100 high-quality books. As your library grows, your monthly royalties become more stable. You should also keep an eye on your reviews. If customers complain about small print or errors, use that feedback to improve your next release.
Treat this like a real business, not a hobby. Track which niches are performing well and double down on them. If your “Dog Lover” word search is flying off the shelves, consider making a “Cat Lover” version or a “Bird Watching” version.
Ready to start your publishing journey? Pick one niche today, grab a free Canva account, and start researching. The best way to learn is by doing.