Modultown!
Experience mathematics like never before in a whimsical puzzle hunt through the exciting Modultown! It is a fiction book for children ages 9-14 and the young at heart. Lovers of math, puzzles, or fantasy adventures alike will delight in this journey of problem-solving and friendship. Playing in Modultown unlocks pathways into number theory, computer science, genetics, and other essential modern fields. 
Watch the trailer, meet the authors, and support the crowdfunding campaign by December 1, 2025.
Questions? Author requests? Book tour ideas? Contact us.
Kickstarter isn’t working for you? PRE-ORDER the book here – release planned for May 2026
You will receive your book when it comes out. We will let you know by email when that happens.
PRE-ORDER beautiful paperback for your learning library. $28 $22 It comes with ePub and PDF files of the book.
PRE-ORDER electronic book for all your devices. $8 You get ePub and PDF files of the book, DRM-free.
This book has an open license under Creative Commons. You can get the PDF at the price you name. Type the amount (from zero to infinity):
Big discounts for small bundles – with any titles
Mathematics works so much better with others! Buy together with friends, your class, math circle, or fundraiser – or treat yourself to a bundle of titles. You save on book price and shipping.
- $19 each book when you buy 2-4 books
- $16 each book when you buy 5+ books
Mix and match different Natural Math books for this offer.
Ebook discount is $3 off each ebook when you buy two or more.
Add the books to your cart. The discounts will apply automatically.
Modultown! Events and Materials
Want to invite Moduli to your math circle, class, event, or home? Use these materials or contact us for help!
November 2025, Triangle Math Teachers’ Circle – Puzzle Hunt at the NC Zoo (printable PDF)
September – October 2025 Math Storytelling Day student circles at UNC CH, Durham Academy, and Orlando MC (editable slides)
August 2025 Math Makers @ Cuboid (editable slides, recording)
