101 Color by Number Monochrome Pixel Reveals: One Pen Coloring Book for Adults

One pen. Six simple marks. 101 hidden images to reveal.

Discover a calming new way to color with 101 Color by Number Monochrome Pixel Reveals — a one-pen coloring book for adults where every page begins as a quiet numbered grid and slowly turns into a hidden black-and-white image.

No color choices, no complicated supplies, and no artistic skill required. Just choose a dark pen, follow the numbers, and fill each square with the matching mark. Little by little, the image appears in soft monochrome tones, creating a relaxing rhythm that feels simple, focused, and satisfying.

This book is designed for screen-free moments at home, peaceful evenings, travel breaks, or anytime you want a creative activity that is easy to start and calming to complete.

Inside you’ll find:

101 hidden black-and-white pixel reveal images
A one-pen coloring experience for adults
Six easy marks that create light, shadow, and contrast
A simple number key that stays consistent throughout the book
A small mark guide on each page
Solution pages at the back of the book
Additional free pixel reveal pages to download and print
Relaxing, screen-free creative time with no color palette to manage
Each image is built one small mark at a time, from a tiny dot to a fully filled square. As the marks collect across the page, the hidden picture gradually comes into view — part puzzle, part coloring book, and part quiet pen-and-ink practice.

For best results, use a black ballpoint pen, gel pen, or fine liner. Alcohol-based markers and very wet markers are not recommended, as they may bleed, spread inside the squares, or soak through the page. If your pen is very dark or wet, place a blank sheet behind the page before you begin.

At the back of the book, you’ll find a QR code to download additional free pixel reveal pages you can print and enjoy at home. No sign-up required — just scan, download, and enjoy.

Created by ArtGrid Publishing, this book offers a simple, satisfying monochrome coloring experience for adults who enjoy hidden images, gentle focus, and the pleasure of watching a picture slowly appear.

Pick up your pen and enjoy the reveal — one tiny mark at a time.

ArtGrid Publishing focuses on unique monochrome reveal books that combine creativity, relaxation, and the joy of discovery.

Using only one pen and a handful of simple symbols, each page gradually uncovers hidden black-and-white artwork in a calm, focused, and rewarding way.

Designed for adults who enjoy puzzles, coloring, and mindful creative activities, these books offer a relaxing experience where every symbol contributes to the final image.