Start here

If you are completely new, take the lessons in this order. Each one takes about ten minutes. You do not need to buy anything to learn.

Step 1 — How crypto works

• What is Bitcoin?

  Where Bitcoin came from, how it works step by step, and the risks regulators warn about.

• What is a blockchain?

  Blocks, hashes and consensus in plain English — plus the myths NIST says to ignore.

Step 2 — Who holds your crypto

• Crypto wallets and private keys

  Why your wallet holds keys, not coins — and what happens if you lose them.

Step 3 — How not to get scammed

• Crypto scam red flags

  The warning signs regulators see again and again — and what to do if you spot one.

Step 4 — The maths of fees and losses

• Crypto profit calculator (with fees)

  Profit or loss after buy and sell fees, plus your break-even price. Formulas included.