How to Create Puzzle Books for KDP: 6 Steps to Published

Choose Your Puzzle Type and Audience

The most important decision you'll make is who your book is for. The most popular puzzle types for KDP include cryptograms (ideal for adults and seniors; quotes make them feel meaningful), word searches (broad appeal, especially for themed collections like holidays, animals, and sports), word scrambles (great for children's activity books and classroom use), fill-in puzzles (popular with crossword fans who want something different), and Sudoku (evergreen demand, especially large-print editions for seniors).

Before you start generating puzzles, nail down your audience. A cryptogram book for nurses using medical humor will outsell a generic "fun quotes" cryptogram book every time. Amazon autocomplete and the bestseller lists in your category are a free way to check demand. Then build a quick draft in the PuzzlePage Book Studio and download the first 10 pages plus the cover free, a cheap gut-check before you commit to a book idea.

Pro Tip

Search Amazon for your intended puzzle type and note the top-selling books. Check their reviews for what buyers love and complain about — those complaints are your opportunity to build a better book.

Generate Your Puzzles

You don't need to create puzzles by hand. Free online puzzle generators can produce print-ready PDFs in seconds. PuzzlePage offers free generators for cryptograms, word searches, word scrambles, and fill-in puzzles — each with a downloadable PDF and included answer key.

For a typical KDP puzzle book, aim for 100–300 puzzles depending on the type. Word searches and cryptograms are faster to generate; crosswords and Sudoku require more planning around difficulty levels.

Pro Tip

Use a consistent difficulty progression. Start easy, ramp to medium, and end with a challenge section. Readers appreciate knowing what they're getting into — and a well-paced book earns better reviews.

Format for KDP Print Specifications

Amazon KDP has specific requirements for interior files. Choose the right trim size for your puzzle type:

Design a Professional Cover

Your cover is your #1 sales tool on Amazon. For puzzle books, keep it clean and thematic: use bold, readable fonts (avoid anything too decorative), include the puzzle type and audience clearly in the subtitle, show a puzzle grid or decorative pattern as a background element, and match the cover tone to your audience (playful for kids, elegant for adults).

KDP's Cover Creator tool works for simple designs, but Canva offers more flexibility at no cost.

Pro Tip

Look at the top 10 bestsellers in your category on Amazon and notice what their covers have in common — color palette, font style, imagery. Then do something consistent with the genre but visually distinct enough to stand out in a thumbnail grid.

Publish and Optimize Your Listing

When setting up your KDP listing, spend extra time on your title + subtitle (include your primary keyword naturally, e.g., "Large Print Cryptogram Puzzle Book for Seniors"), your 7 keyword slots (use long-tail phrases your audience actually searches, e.g., "cryptograms for seniors large print" or "puzzle book gift for mom"), your 2 BISAC categories (choose the most specific categories available under Games & Activities), and your description (lead with benefits, not features — "400 puzzles to keep your mind sharp every morning" beats "Contains 400 cryptogram puzzles"). Typing your topic into the Amazon search bar and noting the autocomplete suggestions shows you the phrases shoppers actually use, and the PuzzlePage Book Studio can draft your subtitle and all 7 keyword slots for you while you build.