Make $100/Day with AI Generated Coloring Books (Step-by-Step Guide)

Most "make money online" guides are fluff. This one is not. I'm going to show you exactly how to build a digital asset that pays you royalties for years, using arguably the best AI business model of 2026: Adult Coloring Books.

Why coloring books?

1. High Demand: Stressed adults love them.
2. Zero Inventory: Amazon KDP (Kindle Direct Publishing) prints them on demand.
3. Easy to Make: Midjourney v7 creates perfect line art.

The Tool Stack

• Midjourney ($10/mo): For art generation.
• Canva (Free): For layout.
• Amazon KDP (Free): For selling.

Step 1: Find a Winning Niche

Don't just make "Animals." Too competitive. Niche down:

• "Steampunk Cats in Victorian Outfits"
• "Mindful Mushroom Houses for Anxiety Relief"
• "Heavy Metal Sloths"

Validation: Go to Amazon, search your idea. If there are books with <100 reviews but decent sales ranks (<100,000 in Books), you've found gold.

Step 2: Generate the Art (The Prompt)

Use this specific Midjourney prompt structure for crisp, clean lines:

/imagine prompt: coloring book page of [SUBJECT], clean line art, black and white, white background, fine lines, vector style, no shading, high detail --ar 9:11 --v 7

• Subject: "a cute cyberpunk raccoon eating pizza"
• Aspect Ratio: 9:11 fits standard 8.5x11 paper well.

Generate 50 images. Use Upscale (Creative) to make them print-ready.

Step 3: Layout in Canva

1. Create a "Letter (8.5 x 11 in)" project.
2. Upload your 50 images.
3. Place one image per page.
4. Crucial Tip: Leave the back of each page blank (insert a blank page between images) so markers don't bleed through.
5. Create a bright, colorful cover. (Use Midjourney for this too!).
6. Export as PDF (Print).

Step 4: Upload to Amazon KDP

1. Create a KDP account.
2. Select "Paperback".
3. Title: Be descriptive. "Cyberpunk Raccoons: A Sci-Fi Coloring Book for Adults".
4. Keywords: This is how you get found. Use "stress relief," "art therapy," "gifts for men," etc.
5. Price: $6.99 - $9.99. You make ~$2-4 royalty per copy.

The Numbers

To make $100/day:

• Royalty per book: $3.00
• Sales needed: 33 books/day.

This sounds like a lot, but if you have 10 different books, you only need 3 sales per book per day. Once the book is live, it stays there forever. It requires zero maintenance.

Bonus: Marketing Hack

Go to TikTok. Order one copy of your own book. Film yourself coloring a page with calming lo-fi music. Post it with hashtags #coloringbook #satisfying #arttherapy. One viral video can trigger thousands of sales overnight.

Start today. Your first royalty check could be here next month.