Ethereum explained: the beginner library
Start with the network and ETH, then learn about wallets, fees, and receipts. The ecosystem guides explain layer 2, staking, and DeFi once those basics make sense.
Pick the explanation you need today
New here? Start with the network
Start with what Ethereum does, then learn how a wallet approves an action. When a fee looks confusing, the gas explanation shows the units and the math. The ecosystem guides cover what changes when you use other networks or financial apps.
You can read in any order. Each guide explains one question and links to the next concept when it helps.
Ethereum, explained without the sales pitch
Learn what Ethereum is, how ETH and smart contracts fit into the network, and how reading a balance differs from changing shared state.
ETH vs Ethereum: the name is doing two jobs
Learn the difference between Ethereum and ETH, why network fees use ETH, and how native ETH differs from token representations shown in a wallet.
A smart contract is a program. That’s the starting point.
Learn how Ethereum smart contracts apply rules, how reading data differs from changing it, and why code, audits, and a polished app do not guarantee safety.
Your Ethereum wallet doesn’t actually hold the coins
Learn how Ethereum wallets use keys to authorize transactions, how balances are recorded, and what custody and recovery mean for access.
Ethereum gas fees, minus the headache
Understand Ethereum gas units and gwei with a worked fee example. Learn how the final cost differs from a fee cap and why failed transactions can cost ETH.
How to read an Ethereum transaction receipt
Read an Ethereum transaction receipt by checking the network, status, addresses, and fee. Learn why zero ETH value can still involve a token transfer.
Ethereum layer 2: more room, different trade-offs
Understand Ethereum layer 2 networks, how rollups share transaction work, and which bridge, asset, security, and withdrawal details to check before use.
Ethereum staking is network work, not free interest
Understand how Ethereum staking supports network security, how participation methods differ, and why rewards and exit conditions carry risks.
DeFi and stablecoins: useful ideas, real dependencies
Understand the contracts, issuers, collateral, price feeds, and administrative controls that DeFi applications and stablecoins can depend on.