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River9 Studio

  • Home
  • Books
  • Blog
    • Color Lab
    • Cute & Kawaii
    • Creepy Corner
    • Manga & Anime
    • Mind & Mood
  • About Us
  • Contact
Shop on Amazon
River9 Studio

What are You Looking For?

Etsy Coloring Book Copyright Theft and Illegal Reselling Problem

You are browsing Etsy. A coloring book PDF catches your eye. Fifty pages, gorgeous illustrations, instant download, $2.49. You think: what a…

Which Countries Buy the Most Coloring Books in the World?

Adult coloring books were supposed to be a fad. That was the consensus around 2016 when trend forecasters started writing the genre’s…

How Coloring Books Help People with Depression

Some days, getting out of bed feels like the hardest thing in the world. The to-do list sits there, untouched. The phone feels too heavy to…

How Coloring Books Help Elderly Adults and Alzheimer’s Patients

Margaret is 81. She has not recognized her daughter’s name in two years. She stopped speaking in full sentences sometime last spring.…

Finding Beauty in Blood with the GOREgeous Aesthetic

A pale figure with roses growing from an open wound. A skull crowned with cherry blossoms dripping red. A portrait so soft and pretty you…

Junji Ito and the Rise of the Horror Coloring Book Trend

There is a particular kind of horror that does not make you flinch and look away. It makes you lean closer. You know something is deeply wrong…

Finding a Strange Peace With a Goblincore Coloring Book

Nobody is coming to goblincore because their life is going perfectly. You find goblincore when you are tired of performing enthusiasm for…

Cute Serial Killers and Bloody Valentines: The Bizarre Trend in Adult Coloring

Picture this. You grab your markers after a long day, expecting flowers or mandalas. Instead, you end up shading a tiny cartoon serial killer…

Smart Tricks to Save Your Art on Double-Sided Coloring Pages

You spend two hours shading an intricate mandala or a creepy, cute character until it looks perfect. Then you flip the page and discover your…

How to Create Realistic Blood and Gore Effects with Gel Pens and Pencils

You open your horror-themed coloring book to a fresh wound on a chibi serial killer or a bloody valentine heart. One wrong color choice and it…

The Strange Magic of Creepy Kawaii Art That Everyone Loves Right Now

You spot a tiny cartoon figure with enormous sparkling eyes, rosy cheeks, and a giant pastel bow. Then you notice the tiny axe in its hand and…

A Beginner’s Guide to Mastering Grayscale Coloring Pages

You open a new adult coloring book, and instead of plain line art, you see a fully shaded portrait or a creepy, cute character already…

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River9 Studio

At River9 Studio, we’re all about creating fun and diverse coloring experiences for everyone! Our collections include everything from whimsical and dreamy designs to dark and detailed drawings. Each page is drawn with love to help you enjoy the process of bringing it to life. We’re so grateful to have you join us on our creative adventure!


All books link to Amazon

© River9 Studio. All rights reserved. Crafted with care and a whole lot of color.

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