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Pick a world
Choose a planet book made for busy crayons and curious brains.
Planet books for curious kids
Color the
universe.
Big planets, bold pages, and brilliant facts. Printable adventures for kids who ask why? and then ask it again.
Made forlittle hands
PRINTABLE EBOOKS✦REAL PLANET FACTS✦MADE WITH BIG CURIOSITY✦PRINTABLE EBOOKS✦REAL PLANET FACTS
Apps by Bismuthman
Small screens. Huge places to play.
Build a friendly solar system in All My Planets, or turn an idea into an episode in My Radio Show. Our apps give kids playful, private spaces to make something all their own.
The launch shelf
Books with gravity.
First mission incoming
The first planet book is on the launchpad.
The shop is ready. Sign in to the parent dashboard, upload the first PDF, add a cover and price, then publish it right here.
Parent dashboardFrom space to your printer
Three tiny steps.
No waiting for a rocket delivery. Every book is an instant, reusable PDF download.
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Zoom to Stripe
A grown-up completes the safe, secure checkout.
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Print & explore
Download the PDF, print your pages, and start the mission.
Hello, Earth
Born from a five-year-old’s favorite thing.
Bismuthman began with Gajou, a young planet superfan, and a grown-up helping turn big ideas into real books. Every page starts with the same mission: make learning feel like exploring.
Color boldlyOpen-ended pages with room for imagination.
Learn for realClear, kid-sized facts a grown-up can trust.
8wild worlds
4.6Byears of wonder
∞things to color
Mission control
Questions from Earth.
What do I get?
A printable PDF ebook with planet coloring pages and kid-sized facts. Your download link appears after a grown-up checks out.
Can I print it again?
Yes—for your own household or classroom, following the license shown on the book page. Please do not resell or repost the file.
Who handles payment?
Stripe securely handles checkout. Bismuthman never stores your card number, and a grown-up should always complete the purchase.
Ready for liftoff?
Make some space at the coloring table.
books