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Screen-free books for car trips and rainy days, on the theme your child is obsessed with this month.
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Make activity books with mazes, word searches and an answer key
Pick a theme and an age range. Bookhatch builds the puzzles, numbers them, adds a solved answer key at the back and gives you the interior, cover and listing for KDP.
- 10–60 puzzles
- Ages 6+
- 8.5 × 11 in
- Answer key included
How it works
From a theme to a finished puzzle book
Choose a theme and age
“Space mazes for ages 6–8” or “farm animal word searches”. The age range sets grid sizes and word lengths.
Set the mix
Choose how many puzzles and which kinds. Word lists come from your theme, and you can edit them.
Download the book
Puzzles, an answer key, a full-wrap cover and listing text, laid out for KDP.
What you get
Puzzles that are actually solvable
Activity books print best at 8.5 × 11 in on white paper, so pencils and erasers work and there's room for small hands.
- Every maze has exactly one solution, with a clear start and finish
- Word lists built from your theme, printed under each grid
- A numbered answer key so parents and teachers can check quickly
- Big, clean lines that also copy well on a home printer
- Cover and listing text written for the age group you picked
Spec sheetActivity book · 64 pages
Trim8.5 × 11 in
PaperWhite · black ink
Puzzles10–60, one per page
Answer keyAt the back, numbered
Spine0.144 in
Cover file17.394 × 11.250 in
Printing (Amazon.com)$2.84 per copy
Royalty at $9.99$3.15 per copy
Art styles
Cover and decoration styles
Puzzles are clean black line work. The style you pick sets the cover art and the small illustrations around each puzzle.
Who it's for
Puzzle books for home, class and travel
Teachers and tutors
Word searches built from a vocabulary list, and mazes as early finishers' work, with a key for quick marking.
Niche publishers
Because puzzles cost no credits, a 60-puzzle book costs the same to make as a 10-puzzle one.
Ideas to start from
- Dinosaur mazes
- Space word searches
- Farm animals for ages 4–6
- Ocean explorers
- Holiday puzzles
- Spelling-list word searches
- Knights and dragons
- Bugs and minibeasts
- Road trip activity book
- Sports word searches
- Rainforest mazes
- Under the sea
KDP rules
KDP rules for puzzle books
What Amazon's print rules mean for this kind of book, and how Bookhatch handles each one.
| Topic | What KDP expects | What Bookhatch does |
|---|---|---|
| Trim size | 8.5 × 11 in is the most common for kids' activity books. | 8.5 × 11 in by default. |
| Ink and paper | Black ink on white paper. | White paper, black ink. |
| Page count | At least 24 pages, including the answer key and title page. | 10–60 puzzles plus title page and answer key. |
| Low-content? | KDP lists puzzle books as not generally low-content, so the free KDP ISBN is available. | You choose the free KDP ISBN or your own when you publish. |
| Line weight | Lines at least 0.75 pt so they print reliably. | Maze walls and grid lines are bold, solid black. |
| AI disclosure | Disclose AI-generated text or images such as the cover. Puzzles generated by code are not AI content. | A reminder at export. |
Sources
- KDP Help: Set trim size, bleed and margins
- KDP Help: Paperback submission guidelines
- KDP Help: Low-content books
- KDP Help: Content guidelines (AI-generated content)
Checked against KDP's help pages on 6 November 2026. KDP changes its rules from time to time, so confirm anything important on KDP's own pages before you publish. Bookhatch is not affiliated with Amazon.
Example cost
What one book costs in credits
A 20-puzzle activity book uses about 107 credits, roughly $0.64 on the Starter plan.
Puzzles are generated by code, so 60 puzzles cost the same as 10. It's the cheapest way to try a new niche.
| Part of the book | Credits |
|---|---|
| Book plan | 60 |
| 20 puzzles (mazes and word searches) | 0 |
| Answer key | 0 |
| Cover | 45 |
| Listing text | 2 |
| Total, about $0.64 at the Starter rate | 107 |
FAQ
Questions about activity books
Which puzzles can I put in an activity book?
Mazes and word searches, on any theme you describe. You can make a book of one kind or mix both. More puzzle types are planned.
Is there an answer key?
Yes. Every book ends with an answer key: the solved path for each maze and the circled words for each word search, numbered to match the puzzle pages.
Why are puzzle pages free?
Mazes and word searches are built by code, not by an AI model, so they cost nothing to make. Credits only go on the plan, the cover and the listing text.
How do I pick the difficulty?
Set the age range when you describe the book. Younger readers get smaller mazes and short, straight words; older readers get bigger grids and longer words.
Can I use my own word lists?
Yes. Word lists are suggested from your theme and you can edit them before the puzzles are built, for example to match a class spelling list.
Is an activity book low-content on KDP?
Generally no. KDP lists puzzle books as not generally low-content. See low-content vs. regular books.
Do I need to disclose AI for a puzzle book?
Puzzles built by code are not AI-generated content. If the cover art or any text was generated by AI, disclose that when you publish.
How much does an activity book cost?
About 107 credits for 20 puzzles, roughly $0.64 at the Starter rate. Adding more puzzles doesn't change the price.
Guides
Before you publish
Rules
Low-content vs. regular books on KDP: ISBNs and distribution
What KDP counts as low-content, why coloring and puzzle books usually aren't, ISBN options and Expanded Distribution.
Read the guide · 7 min →FormattingKDP paperback specs: trim size, paper, bleed and margins
Trim sizes and page limits, the four ink and paper options, bleed, margins by page count, spine width and image rules.
Read the guide · 10 min →PublishingKDP paperback royalties and printing costs, with worked examples
The 50% and 60% rates, printing cost formulas, the $9.99 threshold and worked examples for every book type.
Read the guide · 8 min →Other book types
Coloring book maker →
Clean black line art with closed shapes, one design per page and blank backs so markers don't bleed through.
Picture book maker →
A short story told one scene per page, with characters described once so they stay consistent.
Bedtime stories →
Calm, read-aloud stories that slow down page by page, in soft pastel or paper cut-out art.
Make a puzzle book for the price of a coffee
Start with 300 free credits and no card. Pick a theme, choose your puzzles and download a full activity book.
Create a free account →