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Crypto Fundamentals: The Basics, Explained Simply

New to crypto? Start here. Plain-English answers to every “what is…” question — wallets, keys, gas, liquidity pools, audits — plus free courses and a masterclass to build real understanding.

“What is…?” — the questions everyone asks

Each answer links to its own glossary page with a clear definition and further reading.

Learn the fundamentals properly

Structured paths that build real understanding, not just vocabulary.

Crypto Fundamentals masterclass
A 10-lesson path covering keys, wallets, tokens, transactions, DeFi basics, and staying safe. First two lessons free.
Basic Concepts course
Interactive introduction to blockchain and Stellar fundamentals.
Web3 Fundamentals course
Web3 development, blockchain technology, and dApps — free for members.
Full Web3 & Blockchain glossary
Every term in the ecosystem, each with its own page.

Journals for beginners

Longer reads that connect the dots between the fundamentals.

Learn About Blockchain
How distributed ledgers work and why they matter beyond cryptocurrency.
Crypto Wallet Security: Seed Phrases & Passkeys
How to protect your keys — the single most important skill in crypto.
What Is DeFi? A Beginner’s Guide
Lending, trading, and earning without banks — explained simply.
What Is a Stablecoin?
The bridge between traditional money and the blockchain economy.

Frequently asked questions

What is the most important thing to learn first in crypto?
Key management. Every crypto asset is controlled by private keys and seed phrases — whoever holds them owns the funds. Understanding wallets and security before buying anything prevents the most common beginner losses.
What is the difference between a coin and a token?
A coin is a blockchain’s native currency — BTC on Bitcoin, ETH on Ethereum, XLM on Stellar. A token is issued on top of a chain by a smart contract or asset issuer — USDC, governance tokens, and NFTs are all tokens.
Is crypto safe for beginners?
The technology is reliable, but the risks are real: volatility, scams, phishing, and irreversible mistakes. Learning the fundamentals — wallets, seed phrases, how transactions work — before investing is the safest path.
Do I need money to start learning crypto?
No. Testnets provide free practice funds, and EduNode’s free courses, masterclass lessons, and challenges let you learn and experiment without spending anything.