Two AI coloring books earned $10,155 net profit in 2025
A six-year KDP publisher showed his live dashboard and subtracted ad spend.
Subject: Sam (self-publishing author and KDP tutorial creator)Amazon KDP royalties
Case Overview & Background
Sam, who has self-published for six years, earned $13,745.78 in royalties from two AI coloring books during 2025, split almost evenly between them. After about $3,589 in Amazon ads, his net profit was $10,155.
How AI Is Used
Step-by-Step Process
He checks whether coloring books in a niche actually sell, rather than relying on keyword tools.
Line art made with AI design tools.
Ads at 22% to 27% advertising cost of sales.
Customer Acquisition & Distribution
Limitations, Risks & Failure Modes
What may not apply to you, and what could go wrong:
- Ads consumed about a quarter of royalties
- Coloring books are a crowded KDP niche
- Source is a third-party write-up of a video
Key Takeaways
- Net profit after ads is the number that matters
- Competitor strength matters more than competitor count
- Two well-chosen books can earn steadily
Sources
ProvenStartups: AI coloring books on Amazon KDP
Note: Write-up of the creator's video, with royalties, ad spend, and advertising cost of sales.
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