A free, interactive platform for learning and applying mental models — built by Corey Zocchi.
There are hundreds of mental models — powerful thinking frameworks used by the world’s best decision-makers, scientists, and strategists. But most of the resources available online are either encyclopedic lists you’ll never finish reading, paywalled courses, or academic papers that take a PhD to parse.
The result: most people know about mental models but don’t actually use them.
ThinkingKit exists to close that gap. Every mental model is explained visually, with real-world examples, and paired with interactive tools that let you apply the model to your own decisions right now — not someday after you finish a course.
Everything is free. No paywalls, no premium tiers, no email gates. The entire library, every tool, every resource.
ThinkingKit is built by Corey Zocchi, an educator and builder based in Nanjing, China. The project draws on a deep reading stack — Parrish, Taleb, Munger, Kahneman, Meadows, Gigerenzer, Tetlock, and many others — and a belief that the best way to learn is to do, not just read.
ThinkingKit launched with a curated library of foundational mental models and three interactive tools: a Decision Matrix Builder, a Pre-Mortem Generator, and a Bias Check. More models and tools are added regularly.
A “Thinking Toolkit Matcher” that recommends the right models for your specific situation. Learning paths that chain models together in useful sequences. Visual explanations for every model. A personal latticework tracker. And much more.
Built with Hugo and deployed on Cloudflare Pages. Set in Newsreader and DM Sans. Source code on GitHub.