Modern Puzzle Books for KDP & Printables

Yes, absolutely. All books generated on Starter, Pro and Publisher plans, as well as books paid with credit top-up packs, come with a full commercial license and no watermark. You own 100% of your book royalties on Amazon KDP, Etsy, or your own store with zero royalties owed to Wisdom.

Every plan has Kids and Senior editions, large print, all grid sizes and difficulty levels, every maze shape, all themes, custom fonts, SVG export, series export of up to 5 books and no watermark. The plans differ in the puzzle types, the book languages and the monthly credits. Starter makes Sudoku, Word Search, Maze and Missing Vowels books (1,500 credits a month). Pro adds Word Scramble and Cryptogram books (4,000 credits). Publisher adds Wordoku books and 10 book languages for the Amazon marketplaces (8,000 credits). The free trial lets you try every puzzle type and language, with a watermark.

Yes, on the Publisher plan and in the free trial. Pick one of 10 book languages, one for each Amazon marketplace: English (amazon.com, amazon.co.uk, amazon.ca, amazon.com.au, amazon.in), German (amazon.de), French (amazon.fr), Spanish (amazon.es, amazon.com.mx), Italian (amazon.it), Dutch (amazon.nl), Brazilian Portuguese (amazon.com.br), Japanese (amazon.co.jp), Polish (amazon.pl), Swedish (amazon.se). Wisdom Effect then prints the texts it writes into the book in that language: puzzle and solution titles, chapter headings, the table of contents, difficulty labels, the copyright page (10 legal templates), the intro and thank-you pages and the labels on the puzzle pages, seasonal editions included. Sudoku and maze books need nothing else. Word search, word scramble, missing vowels, cryptogram and wordoku books use your own words or quotes in that language. The puzzles use the letters A to Z: accents are dropped (é becomes E), letters such as ß or ł are left out, and Japanese words cannot be used. Texts you write yourself are not translated, so write them in the book's language. Starter and Pro books are printed in English.

Yes! Wisdom Effect automatically calculates 1:1 gutter, bleed, and safe margins based on your physical page count and trim size, strictly adhering to Amazon's paperback specifications. Your exported PDFs are 100% print-ready with zero manual adjustments needed.

Yes. For Sudoku, every puzzle is mathematically verified and permanently retired from our library once exported—no two publishers ever receive the same Sudoku boards. For Word Search, our procedural engine dynamically calculates letter coordinates and random filler entropy every time, ensuring unique matrix layouts, alongside full support for your own proprietary CSV/TXT word lists. Every maze is generated from its own book code (seed), so each book in a series is different, yet the exact same book can be reprinted at any time.

Yes, on every plan. A mixed book combines the puzzle types your plan includes: Starter mixes Sudoku, Word Search, Maze and Missing Vowels chapters, Pro adds Word Scramble and Cryptogram, and Publisher adds Wordoku. Switch chapters on or off, choose their order, combine multiple grid sizes (Sudoku 4x4–9x9 & Word Search 12x12–24x24) and set quantities across all difficulty levels, with automatic solution numbering.

Yes. The maze book generator creates rectangular mazes from 5x5 to 100x100 cells, circular mazes and heart, star, Christmas tree, house, diamond and egg shaped mazes in three styles (Classic DFS, Kruskal and Prim), with optional loops, Kids and Senior editions, START/FINISH markers and a solution key showing the shortest path. Each maze costs 1 credit, and every book is print-ready with KDP-safe margins.

Yes. The word scramble generator builds themed puzzles from 900+ curated topics or your own CSV word list (with optional clues), lets you set word lengths and words per page, prints letter boxes or writing lines, and can hide a secret word in the answers. Kids and Senior editions are included, and every book has its own reproducible book code.

Yes. The cryptogram generator turns your own quotes (CSV with title, text and author) or 900+ themes into Aristocrats, Patristocrats and shift codes, printed as letters or number codes. A built-in solver checks that every cryptogram has exactly one solution and reveals extra letters when needed. Kids and Senior editions are included, and each puzzle costs 1 credit.

Yes. The wordoku generator makes letter sudoku: each 9×9 grid uses the nine different letters of one word, and one row of the solution spells that word. Use the built-in kid-safe word list or your own words; every wordoku is a sudoku of our puzzle bank with letters, so it has the same 7 difficulty levels (Easy to Inferno), exactly one solution and the same credits as sudoku. Kids (4×4 and 6×6) and Senior large-print editions are included.

Yes, on every plan including Starter. A missing vowels puzzle shows themed words with A, E, I, O and U removed (G_RD_N, or GRDN in the consonants-only style) and the solver writes the words back. Use 900+ curated themes or your own CSV words with clues, choose word lengths (3–15 letters) and up to 25 words per puzzle, and add a vowel bank or keep the first letter. Kids and Senior editions are included, and each puzzle costs 1 credit.

Not in Easy, Medium, Kids or Large Print puzzles. Every printed word is checked against the theme dictionary and your own words, so C_T (CAT, COT or CUT) is skipped, and no puzzle prints the same gaps twice. Hard and Expert puzzles can allow such words on purpose.

No. A scrambled word is never the original word, and it is checked against an English dictionary so it never spells another real word (MOON never becomes MONO) — unless you deliberately allow anagrams.

Every paid plan can generate and download entire multi-volume book series (up to 5 books at once, e.g., Volume 1 through Volume 5) in a single click. Every book in the batch is automatically compiled with a completely unique set of mathematical puzzles and solutions, while preserving your global styling, fonts, and Amazon KDP formatting.

We support 9 popular Amazon KDP trim sizes: 5" x 8" (small travel & purse-size puzzle books), 5.5" x 8.5" (compact travel & gift puzzle books), 6" x 9" (standard pocket puzzle books), 6.14" x 9.21" (trade paperback (UK Royal) puzzle books), 7" x 10" (mid-size workbooks & puzzle books), 8" x 10" (roomy workbooks & activity books), 8.5" x 11" (large print & kids activity books), 8.27" x 11.69" (European A4 workbooks & large print books), 8.5" x 8.5" (square kids & activity books). Margins, gutter and safe areas adapt automatically to the selected trim. You can download print-ready 300 to 600 DPI Ultra-HD PDFs, high-resolution PNG ZIP packages, or SVG Vector ZIP files.

Yes, on every plan. The Cover tab lays out the full Amazon KDP paperback cover — back, spine and front with 0.125" bleed — and draws guides for the trim, the spine folds, the safe zones and the barcode area. The spine width follows your book's page count and paper (white, cream or color), so it always matches the interior. Add your images, texts and shapes; one Export downloads the interior and the cover as separate files, the way KDP asks for them.

No design skills or third-party tools are required. Wisdom Effect is an all-in-one studio: select from more than 220 fonts, add stock graphics from Pixabay, customize intro/copyright pages, generate automatic TOCs, design the cover, and export a complete 100-page book in under 2 minutes.

Your monthly plan credit allowance (1,500 for Starter / 4,000 for Pro / 8,000 for Publisher) refreshes every month, on yearly plans too. However, all purchased credit top-up packs (+1k, +2k, +5k) NEVER expire and remain in your account forever, even if you pause or cancel your subscription.

Yes, at any time with 1 click. You have direct access to your Lemon Squeezy Customer Billing Portal from your account settings to instantly upgrade, downgrade, or cancel your subscription without needing to contact support.

No credit card is required to get started. Simply sign up with your email to receive 100 free credits, giving you instant access to test the editor canvas, customize layouts, and export your first trial puzzle book.

Yes! You can toggle Midnight Mode (dark background with inverted grid lines for relaxation books) and Large Print layouts (high-readability typography designed for seniors and visually impaired readers), both of which are high-demand niches on Amazon.