A seller is an individual or business that offers goods or services for sale. Sellers can operate in various markets, including retail, wholesale, and online platforms. They play a crucial role in the economy by providing products that meet consumer needs and preferences. Sellers can range from small local shops to large corporations. They often set prices based on factors like production costs, competition, and demand. In many cases, sellers also engage in marketing strategies to attract customers and increase sales, utilizing tools such as advertising and promotions to enhance visibility and appeal.