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Short courses on how crypto works and how to keep it safe, in plain English, with something to go and do at the end of each lesson.
Lesson 1 of each course is open to everyone. The rest are free with a sign-up.
From an empty box to a wallet you can trust, with every step that loses people money marked.
Six lessons
The scams that cost crypto holders the most in 2025, and what to do in the first hour if one reaches you.
Five lessons
What you own on an exchange, in a fund and in your own wallet, and how to check who’s allowed to hold it for you.
Four lessons
Subscribing opens every lesson in the four Beginner courses and gets you The Crossover every weekday morning. Unsubscribe in one click.
Lesson 1 of each course is open to everyone. The rest come with The Crossover Pro.
What money is, how Bitcoin works, its supply and security, and the case for and against it.
Six lessons
How Ethereum works today, from the fee you pay to the upgrades that changed it.
Eight lessons
How a stablecoin holds its dollar, what sits in the reserve, and how to use one without losing it.
Four lessons
The machinery behind swaps, liquidity pools, lending and bridges, and the ways they break.
Six lessons
How much to put in, how far out to go and how to keep a plan you wrote yourself.
Five lessons
Checking a project for yourself: what its token does, who holds the supply and who runs it.
Four lessons
Lesson 1 of each course is open to everyone. The rest come with The Crossover Pro.
Keeping crypto you already hold, from who steals it and how to the first hour after a theft.
Ten lessons
Where every crypto yield comes from, who is paying it and how each kind has lost people money.
Five lessons
Why trading loses money for most people, what your own mind does in a market, and how to decide before the price moves.
Five lessons
Lesson 1 of each course is open to everyone. The rest come with The Crossover Pro.
The machinery under every chain: hashes, signatures, consensus, forks and scaling.
Six lessons
What a DAO is, how its votes work, how they have failed and how to take part safely.
Five lessons
What a token of a real asset is, who may hold one and how to read the claim behind it.
Four lessons
What a tax office counts, the records that prove it, and what happens to your crypto if something happens to you.
Five lessons