1. What is Cryptocurrency? Before diving into trading, it's crucial to understand what cryptocurrency is. Cryptocurrency is a digital or virtual form of currency that uses cryptography for security. It's decentralized, meaning it's not controlled by any central authority like a bank or government.

2. Types of Cryptocurrencies: There are thousands of cryptocurrencies, but the most popular ones include Bitcoin (BTC), Ethereum (ETH), and Ripple (XRP). Each cryptocurrency serves a unique purpose, so research is essential before trading.