The Indie Lab

The Indie Lab

About the Substack

Real experiments in indie publishing. I test marketing, AI, tools and business models on my own books, then show you the numbers, the failures and what actually worked.

Free Subscription Benefits

• Weekly guides on KDP strategy, Amazon algorithms, and indie publishing intelligence.

Paid Subcription Benefits

• Access to author's toolkit with various useful tools: paperback cover template generator, MS Word margins calculator, 3D mockup tool and series read-through calculator
• The Algorithmic Copywriter eBook – write blurbs that satisfy Amazon's algorithm and convert human readers.
• 3-pass AI editing prompt system + KDP dashboard audit prompt + Engineering Indie Success mini-course.

Paid Subscription Plans

• $8 a month
• $72 a year

About Marcin Pilarczyk

Laid off twice. Built a sci-fi portfolio. Sold 8,131 copies in 2025. Now I test publishing, AI, tools and business models on my own books – and share the numbers, failures and what worked.