E-commerce, short for electronic commerce, refers to the buying and selling of goods or services using the internet and digital technologies. It encompasses a wide range of transactions, from online retail stores and auctions to business-to-business trading platforms. E-commerce has revolutionized the way businesses operate by enabling global reach, 24/7 accessibility, and streamlined purchasing processes. It relies on secure payment gateways and robust logistics networks to facilitate transactions, offering convenience and choice to consumers while opening up new markets and revenue streams for businesses worldwide.