E-commerce refers to the buying and selling of goods or services over the internet. It allows businesses to reach a wider customer base, as well as to sell products or services 24/7 without the need for physical storefronts. The process typically involves setting up an online store, listing products or services for sale, and processing payments through a secure payment gateway. Customers can browse and purchase items through the website, and the business is responsible for shipping the products or delivering the services. E-commerce has revolutionized the way business is conducted, offering convenience and accessibility for both businesses and consumers.