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Finance & investing,
learn at your own pace.


Lessons attached to live SEC filings, ten-year financials, and credit data — the same primary sources the professionals read. From understanding what a stock is to reading a 10-K end-to-end. Every lesson is interactive, AI-assisted, and free to start — no account required.

Hit a term you don’t know? Every lesson defines its terms inline; the glossary is the full reference.

Curated journeys

Sequenced paths through the catalog — pick a journey and go.

I want to:
Starter courses
No prior knowledge required. Start here if you're new to investing.
13 courses · 180 lessons
A focused single-module course on setting target weights and keeping them through disciplined rebalancing. For the full…
Build a discipline
Assumes familiarity with stocks and basic financial concepts.
17 courses · 152 lessons
Understand how the financial system actually works — from Treasury auctions to repo markets to the mechanics of the 2008 crisis. This path…
Prerequisites: Understanding Bonds and Fixed Income and Stock Market Fundamentals
Go deeper
For readers who want to push past the fundamentals into the deep cuts.
10 courses · 101 lessons
The capstone integration layer. Walk through full end-to-end case workflows that fold industry analysis, financial-statement reading,…
Prerequisites: Practitioner Toolkit: From Concept to Thesis, DCF Valuation in Practice, Portfolio Risk Management, and Behavioral Finance: The Investor's Mind