Built for Mars
Curated by Peter Ramsey • Added 2026-01-10
90+ in-depth UX case studies and 1,400+ real-world product teardowns
Built for Mars by Peter Ramsey is the internet's most respected UX research library. Deep case studies dissecting onboarding flows, checkout funnels, psychological friction, and conversion rate optimization.
What You Will Learn
- ✓How micro-friction in onboarding flows directly impacts user churn and retention
- ✓Cognitive biases and psychological heuristics applied to user interface design
- ✓Comparative audits of the world's most successful mobile and web applications
- ✓Practical frameworks for conducting rigorous usability audits on your own software
Curator Highlights
- ★90+ exhaustive case studies
- ★1,400+ real UI teardowns
- ★Tested with real humans
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