E-commerce, or electronic commerce, refers to the buying and selling of goods or services using the internet, and the transfer of money and data to execute these transactions. This vast and dynamic field encompasses a wide range of online business activities, including retail sales, online marketplaces, and business-to-business (B2B) transactions. E-commerce offers convenience, a broader selection, and often lower prices, revolutionizing traditional retail by enabling businesses and consumers to conduct transactions anytime and anywhere.