Free Investment Principles API - Curated wisdom from Buffett, Munger & more | keeprule.com

The ultimate index of 65 decision-making repositories — mental models, investing, psychology, and practical frameworks

Investment principles from Buffett, Munger & masters - NPM package | keeprule.com

Buffett-Style Investment Scorecard - Rate any stock using Warren Buffett's investing principles. Powered by KeepRule.com

Practical decision-making guide for teenagers — school, social life, career choices, and building lifelong judgment skills

Lessons from history's greatest failures — learn what NOT to do

Philosophical foundations of decision-making — from Stoicism to Bayesian reasoning and existentialism

Practical framework for personal OKRs — turning vague ambitions into measurable outcomes

Clear practical guide to decision trees — the foundational tool for structured decision analysis in business, medicine, and AI

Systematic checklist for evaluating real estate investments using Buffett-inspired principles

Free interactive investment education tools — Portfolio Health Check, Fear & Greed Calculator, Decision Tree. Powered by KeepRule.

Charlie Munger's mental models, investment principles, and life philosophy — comprehensive wisdom collection

Free 7-Day Email Course: Master Buffett's Investment Principles | KeepRule

Comprehensive notes on Kahneman's Thinking, Fast and Slow — System 1/2, biases, prospect theory, and better decisions

A structured template for tracking your decisions daily

Curated collection of powerful decision-making quotes from Buffett, Munger, Einstein, Seneca, and more

Curated reading list of the best books on decision science and rational thinking

Ready-to-use templates for strategic planning, OKRs, and decision logs

Structured template for auditing decisions — separate luck from skill and improve your judgment over time

What Type of Investor Are You? Take this 2-minute quiz to discover your investing personality.