E-commerce refers to business transactions conducted electronically, typically over the Internet. There are several types of e-commerce models including business-to-business (B2B), business-to-consumer (B2C), business-to-employee (B2E), and consumer-to-consumer (C2C). B2B involves transactions between businesses, B2C involves direct sales from businesses to consumers, B2E provides products/services to employees within a company, and C2C allows individuals to buy and sell through online marketplaces like eBay. E-commerce provides advantages like 24/7 access, low costs, and a wide reach for businesses but also disadvantages such as lack of quality guarantees and