CEX (centralized exchange) and DEX (decentralized exchange) are two popular trading forms. CEX like Binance or Coinbase has a user-friendly interface, high liquidity volume but you have to trust the exchange because assets are stored there. In contrast, DEX like Uniswap or PancakeSwap allows you to maintain control over your personal wallet, protect your privacy, but often has higher fees and transaction speeds may be slower. The choice between CEX and DEX depends on your security preferences, convenience, and costs.