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Bitcoin in10 minutes.

Ten short lessons, about a minute each. Plain English, no hype, and a safe first step at the end.

Lesson 1 of 10 · about 1 min

What Bitcoin is

Digital money that no company or government runs.

Bitcoin is money that lives on the internet. Instead of a bank keeping the books, thousands of computers around the world keep the same shared record of who owns what. That record is called the blockchain. Nobody has to give you permission to use it, and nobody can switch it off. It launched in January 2009 after a person or group using the name Satoshi Nakamoto published the idea in 2008.

Remember: Bitcoin is a network and a shared record, not a company.

Lesson 2 of 10 · about 1 min

Why it exists

To move money without a middleman.

Bitcoin appeared right after the 2008 financial crisis, when many people lost trust in banks. Its goal is simple: let anyone send value to anyone, anywhere, any hour of the day, without asking a bank for approval. Supporters like that it is open to everyone. Critics point to its price swings and to scams. Both are worth understanding before you start.

Remember: It was built so people could hold and send money without needing permission.

Lesson 3 of 10 · about 1 min

Why it is scarce

Only 21 million will ever exist.

Dollars can be printed whenever policymakers decide. Bitcoin cannot. The software everyone runs caps the total at 21 million coins, and about 95% of them have already been created. Roughly every four years, an event called the halving cuts in half the reward for creating new coins, which slows new supply even more. The last one happened in April 2024.

Remember: A fixed supply is the core of the Bitcoin idea.

Lesson 4 of 10 · about 1 min

How the blockchain works

A public ledger that is very hard to cheat.

Transactions are bundled into blocks, and a new block is added about every 10 minutes. Computers called miners compete to add the next one, and that costs real electricity and equipment. To rewrite history, a cheater would have to redo all that work faster than the whole rest of the network. In practice, that is what keeps the record honest.

Remember: Cheating is made so expensive that honesty wins.

Lesson 5 of 10 · about 1 min

Coins, sats, and small amounts

You do not need to buy a whole one.

One bitcoin can be split into 100 million tiny pieces called satoshis, or “sats.” That means you can buy $10 or $25 worth and still own real Bitcoin. Thinking in sats, instead of waiting until you can afford a whole coin, is how most new people start. Try our sats converter to see the math at today's price.

Remember: Start with an amount you are comfortable with. Any amount counts.

Lesson 6 of 10 · about 1 min

Wallets and keys

Your wallet holds keys, not coins.

Your bitcoin lives on the blockchain. A wallet holds the private key that lets you move it, like a master password. Most wallets give you a seed phrase, usually 12 or 24 words, that restores everything if you lose your phone. Anyone who has that phrase can take your money, so write it on paper, store it safely, and never type it into a website or share it. No real support person will ever ask for it. If a company holds the keys for you, that is called custodial; if you hold them, that is self-custody. The saying is: not your keys, not your coins.

Remember: Protect your seed phrase like it is cash.

Lesson 7 of 10 · about 1 min

How to buy

Exchange apps, cash locations, and buying slowly.

The most common route is an exchange app: link a bank account, verify your identity, and buy. You can also pay cash at some stores and Bitcoin ATMs, though fees there are usually higher (see our Bitcoin ATM guide). Many people use dollar-cost averaging, which means buying a fixed amount on a schedule so you are not trying to guess the best day. Our DCA calculator shows how that has worked in the past.

Remember: Compare fees, start small, and be consistent.

Lesson 8 of 10 · about 1 min

Sending and receiving

Addresses are public. Keys are private.

To receive Bitcoin you share an address, which is a bit like an email address. It is safe to give out. To send, you paste the other person's address and confirm. Transactions cannot be reversed, so always send a small test amount first and double-check the first and last few characters of the address. A network fee is charged, and it changes with how busy the network is.

Remember: There is no undo button, so test first.

Lesson 9 of 10 · about 1 min

Risks to know

Big swings, scams, and your own mistakes.

Bitcoin's price can drop hard. It has fallen more than 70% in past cycles before recovering, and nothing guarantees it will. The biggest everyday dangers are scams: anyone promising guaranteed returns, someone you met online asking you to send them coins, or a caller telling you to pay through a Bitcoin ATM. Losing your seed phrase is the other big one. Only use money you can afford to leave alone, and in the U.S. remember that selling or spending Bitcoin can be taxable, so talk to a tax professional.

Remember: If it sounds guaranteed or urgent, it is a scam.

Lesson 10 of 10 · about 1 min

Your next step

Learn first, start small, stay safe.

You now know more than most people who talk about Bitcoin. A good plan from here: keep learning, pick a trusted way to buy a small amount, set up a wallet and back up the seed phrase, and add to it slowly. When you are ready for more depth, our courses and one-on-one sessions walk you through it step by step.

Remember: Education first, then action.

Quick check

Tap a question to see the answer.

How many bitcoin will ever exist?

21 million, and about 95% have already been created.

What should you never share with anyone?

Your seed phrase. Anyone who has it can take your coins.

A stranger says to pay a bill with a Bitcoin ATM. What is that?

A scam. No legitimate business or agency asks for payment that way.

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This guide is for education only and is not financial, legal, or tax advice. Digital assets can lose value.