Electronic Commerce, often referred to as e-commerce, is the buying and selling of goods and services over the internet. It allows consumers to shop online from the comfort of their homes, using websites or mobile apps. E-commerce includes various transactions, such as retail sales, online auctions, and digital marketplaces. E-commerce can be categorized into different types, including B2C (business-to-consumer), where businesses sell directly to customers, and B2B (business-to-business), where transactions occur between companies. Payment methods in e-commerce often include credit cards, digital wallets, and bank transfers, making it convenient for users to complete their purchases.