Blockchain & Cryptocurrency for Beginners
Master blockchain fundamentals: how distributed ledgers work, cryptography, Bitcoin, Ethereum, smart contracts, DeFi, NFTs, and wallet security.

- 7
- Chapters
- 21
- Topics
- 101
- Lessons
- 1050
- Total XP
About this course
A complete, step-by-step beginner guide to understanding the blockchain revolution. Learn how decentralized ledgers eliminate middlemen, how hashing and digital keys secure transactions, the difference between Proof of Work and Proof of Stake, and how to safely explore Web3, DeFi, and crypto wallets.
What you'll learn
- Understand how distributed ledgers solve the middleman and double-spending problems
- Learn how cryptographic hashing (SHA-256) and public/private keys protect transactions
- Understand consensus mechanisms: Proof of Work (mining) vs. Proof of Stake (staking)
- Explore Bitcoin as digital gold and Ethereum as a global decentralized computer
Prerequisites
- No prior finance, cryptography, or coding experience needed
- Basic familiarity with using a smartphone or web browser
Course outline
Chapter 1
The Problem with Traditional Money & The Birth of Blockchain
3 topics
Chapter 1
The Problem with Traditional Money & The Birth of Blockchain
Understand why digital cash was historically difficult to build, the middleman problem, and the revolutionary birth of blockchain.
- Why Was Blockchain Invented?
- What is a Blockchain? (The Core Idea)
- Centralized vs. Decentralized Networks