--- title: "How to make and sell maze books on Amazon KDP | Once Books" description: "A practical guide to maze books: picking a shape and an age, grading the book, provable answer keys, large print that means something, and the interior." source: "https://www.oncebooks.com/blog/how-to-make-and-sell-maze-books-on-kdp" --- 1. [Home](https://www.oncebooks.com/) 2. [Blog](https://www.oncebooks.com/blog) 3. How to make and sell maze books on Amazon KDP Blog # How to make and sell maze books on Amazon KDP [The Once Books team](https://www.oncebooks.com/authors/team) · 4 October 2026 · 8 min read - [kdp](https://www.oncebooks.com/blog/tag/kdp) - [mazes](https://www.oncebooks.com/blog/tag/mazes) - [low-content publishing](https://www.oncebooks.com/blog/tag/low-content-publishing) Mazes are the cheapest puzzle to publish correctly, and that's a stranger claim than it sounds. Every other puzzle book carries a risk that the answer section is wrong somewhere. A crossword clue that admits a second answer, a sudoku with two solutions, a word search whose key marks the wrong diagonal. You mitigate it with checking. With a maze you don't have to: carve it as a spanning tree and exactly one route joins the entrance to the exit, so the key is that route found by searching the maze. It's derived from the puzzle, so it can't contradict it. That's the structural advantage. The rest of this guide is the part that takes judgement. ## The market, honestly Mazes sell in the $6 to $9 band on KDP, with low to medium competition. That's the least crowded of the children's puzzle categories, and noticeably less crowded than word search or colouring, both of which are saturated enough that a generic book simply disappears. The trade is that mazes have a lower ceiling than sudoku, which sells at $8 to $12 with buyers who come back three to ten times a year. A maze book is more often a one-off purchase for a specific child or a specific month. Plan for discovery rather than for a series. If you're choosing between puzzle types rather than committed to mazes, be honest about which market you're entering. Word search has the largest audience and the worst odds. Mazes have the best odds and a smaller audience. Neither fact changes because you'd prefer the other one. ## Pick an age before you pick anything else Size matters more than every other setting put together, and it maps to age more tightly than publishers expect. - **3 to 5.** A 7 by 7 grid, dead ends opened into loops, the thickest wall setting. At this age a maze is pencil control with a story on top, and the thing that ruins it is the dead end: a child commits to a corridor, runs out of page, and learns that the last two minutes were wrong. - **5 to 7.** An 11 by 11 grid, most dead ends still open. This is where a child starts looking ahead instead of taking the first opening. - **7 to 10.** A 16 by 16 grid with every dead end kept. A seven-year-old can take a wrong turn, notice, and come back without losing heart, which is the whole skill a maze teaches. - **Adults.** A 30 by 30 or larger, every dead end kept, entrance and exit at the two furthest-apart points in the carving. Publish for one band. A book that runs 7 by 7 to 40 by 40 serves nobody: the parent who bought it for a five-year-old hits a wall at page thirty, and the adult who bought it waded through twenty pages of nothing first. ## Grade the book, and grade it by measuring A graded book climbs: easy pages first, hardest last. That's what a buyer expects from "easy to expert" on a cover, and it's what makes a book last more than one sitting. The part worth getting right is what "harder" means from page to page. Size alone isn't it. A big grid whose route happens to run down one edge is an easy page with a lot of ink on it, and that's the most common failure in generated maze books. What tracks difficulty is how far the route travels across the grid and how deep the deepest wrong turn goes. Those two numbers are measurable on a finished page, and the grid size isn't a proxy for either. Practically: generate, then check that the hard pages really are harder than the medium ones rather than merely bigger. ## Large print is a different thing for a maze This is the detail most maze books get wrong, and it's worth money. Large print is the fastest-growing format in puzzle books. For a word search that means setting the letters at 18 point. A maze page has almost no text on it, so enlarging a font changes nothing a reader can use. What a reader with low vision or an unsteady hand is tracking is the gap between two walls. So large print for a maze means two things: thicker walls, and fewer cells so the corridors are wider. Set the wall weight heavy and drop one size step, and you've made a genuine large-print book rather than a normal one with a bigger title. That's an underserved shelf. Large-print maze books are rarer than large-print word searches by a wide margin, and the buyers are the same people. ## Shape is a product decision A square maze book and a heart-shaped maze book are different products with different buyers, not the same book with a setting changed. Shape is also what makes a listing image worth clicking, which matters more than anything inside the book for the first hundred sales. The five available are square, hexagonal, triangular, circular and picture silhouettes. For publishing, the short version is that square sells to the widest audience, hexagonal is the one to reach for when your buyer has run out of square mazes, and picture shapes are what get shared. Pick one per book. A variety book of five shapes reads as a sampler rather than a product, and it's harder to title. ## The interior One maze per page. A maze needs the whole page, and packing two to a sheet halves the corridor width at a stroke. Solutions go at the back, six to a sheet. That's fewer than the twelve a sudoku book packs, and the reason is that a solved maze is read by following a line through walls that are already dense at full size. Shrink it to a twelfth of a page and you've printed a key nobody can check their work against, which defeats the point of printing one. So a 100-page interior is roughly 80 mazes plus 14 pages of solutions, with a page or two of front matter. If you include a how-to page, make it shape-specific: a reader who's only seen square mazes doesn't necessarily know that a circular one is solved from the rim inward. ## Trim, gutter and the file Standard KDP rules, with one maze-specific note. Use 8.5 by 11 inches for a children's maze book. The large trim gives the corridors room, and it's what the category looks like, so a smaller book reads as cheap next to its neighbours. The gutter follows KDP's page-count matrix: 0.375 inches up to 150 pages, 0.5 inches to 300, 0.625 inches to 500. Get this wrong and the inner edge of every maze disappears into the spine, which on a maze is worse than on a word search, because a corridor swallowed by the gutter can make a page unsolvable rather than merely ugly. You need two PDFs: the interior and a matching solutions file. KDP takes one interior, so the solutions belong inside it. The separate answer-key file is for selling the book as a PDF on Etsy, where some sellers offer the answers as a separate download. ## Where to start Make one maze free, at the size and shape you're considering, and print it. Most of the decisions above become obvious once you've traced a corridor with the wrong wall weight at the wrong size. The [maze generator](https://www.oncebooks.com/tools/maze-generator) is free with no sign-up and prints the maze with its answer. When you're ready for a book, the [KDP maze maker](https://www.oncebooks.com/kdp-maze-maker) generates hundreds of graded mazes in one shape at any trim, measures each one before it prints, and exports a [print-ready](https://www.oncebooks.com/glossary#print-ready) interior and a matching solutions PDF. Generate once, export as many sizes as you want. ## Try the tool Free, in your browser, no sign-up. Make one, then build the whole book in the studio. [Maze generator Pick a shape, a size and how hard it should be, then print the maze and its answer. Free, no sign-up. Try it free](https://www.oncebooks.com/tools/maze-generator) ## Questions parents ask **Are maze books profitable on Amazon KDP?** Mazes sit in the $6 to $9 band with low to medium competition, which is the least crowded of the kids puzzle categories. They are also the cheapest puzzle to produce correctly, because the answer key is computed from the maze rather than authored beside it. **How many mazes should a maze book have?** One maze per page, so a 100-page interior holds about 80 mazes plus a solutions section at six to a sheet. A maze needs the whole page; packing two to a page halves the corridor width and the book stops being usable. **What makes a maze book large print?** Thicker walls and wider corridors, not bigger type. A maze page has almost no text on it, so enlarging a font does nothing. The measurement that matters is the gap a solver traces along. **How do I know the answer key in a maze book is right?** Compute it rather than draw it. A maze carved as a spanning tree has exactly one route between any two cells, so searching the maze itself gives the answer. A key derived from the puzzle cannot disagree with it. ## Related reading - [Word search books for kids on KDP: what sells](https://www.oncebooks.com/blog/word-search-books-for-kids-on-kdp) — How to make a kids word search book that sells on Amazon KDP: big grids, short familiar words, no diagonals, bright themes. The choices that fit a child. - [Sudoku, word search or crossword: which to start with](https://www.oncebooks.com/blog/sudoku-word-search-or-crossword) — An honest comparison of the three big low-content puzzle formats for KDP: how each is made, who buys it, and where each one is harder to sell. - [How to make and sell planners on Amazon KDP](https://www.oncebooks.com/blog/how-to-make-and-sell-planners-on-kdp) — A practical 2026 guide to publishing daily, weekly and monthly planners on Amazon KDP and Etsy: dated versus undated, page counts, interior rules and covers. ## Keep reading - [Answers](https://www.oncebooks.com/answers) — One sharply-scoped question per page, cost, safety, timing, printing, answered in a couple of sentences before the detail. - [Glossary](https://www.oncebooks.com/glossary) — Plain definitions of the vocabulary: the Character Sheet, the Consistency Engine, style profiles, drift. - [Help centre](https://www.oncebooks.com/help) — Task-shaped instructions for making, printing and sharing a book once you have started one. [← All posts](https://www.oncebooks.com/blog) Try this tool [Maze generator Pick a shape, a size and how hard it should be, then print the maze and its answer. Free, no sign-up. Try it free](https://www.oncebooks.com/tools/maze-generator)