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Bitcoin, taught in order.

Eighteen free courses in five stages, from what money is to the internals of Lightning. Every lesson tells you what you will be able to do, teaches it, then checks it with a quiz or a challenge.

Learn Bitcoin in five stages
START HERE
New to Bitcoin? Begin with Stage 1.
Each stage says what you will be able to do by the end. Take the courses in order, or jump to the stage that matches you. Progress is saved in this browser only.
Start Money 101 →
Money & economicsBitcoin fundamentalsOwning & securingNetwork & miningLightning & layersLaw, taxes & the state
01

Foundations

What money is, how it broke, and who pays for it.

1 course · 8 lessons
BY THE END YOU CAN
  • Explain the three jobs of money and the properties good money needs
  • Say what inflation really does and who gets the new money first
  • Tell the 1971 story in two minutes
02

Understand Bitcoin

What it is, the quick tour, the full picture, and the objections.

3 courses · 25 lessons
BY THE END YOU CAN
  • Say what Bitcoin is in one paragraph, and what it is not
  • Explain why it has value and why there will never be more than 21 million
  • Answer the ten objections you will actually hear
03

Own it

Buying, wallets, keys and keeping it safe.

2 courses · 17 lessons
BY THE END YOU CAN
  • Buy sats the way that fits you, knowing what each route costs
  • Set up a wallet and a backup you have tested
  • Spot the scams aimed at buyers and at holders
04

Go deep

How the network, the money rules, the market and the layers really work.

6 courses · 45 lessons
BY THE END YOU CAN
  • Follow a transaction from wallet to block to confirmation
  • Read the supply schedule, the difficulty and the fee market
  • Read price and on-chain data without fooling yourself
  • Explain Lightning and why Bitcoin is the only one that matters
05

Master

Keys and Script, your own node, governance, Lightning internals, taxes and the state.

6 courses · 39 lessons
BY THE END YOU CAN
  • Verify everything on your own node
  • Read a BIP and judge an upgrade debate
  • Explain how a Lightning channel is enforced on-chain
  • Plan taxes and inheritance for your stack

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