Simple guide to cryptocurrency types: payments (BTC), smart contracts (ETH), stablecoins, DeFi tokens, utility tokens. Which ones to buy.

What is blockchain? Blocks, chains, hashes, consensus. Why it's immutable. Public vs private blockchains. Why it matters beyond crypto.

A stablecoin is a cryptocurrency pegged to a fiat currency like USD or EUR. Learn how stablecoins work, the difference between USDC and USDT, MiCA regulation, and how Europeans use them.

Ethereum is a blockchain platform for smart contracts and decentralized applications. Learn how Ethereum works, what ETH is, how it differs from Bitcoin, and its role in crypto.