Retail trade involves the sale of goods directly to consumers in small quantities to meet their needs. Retailers purchase goods from wholesalers and sell them directly to consumers. They provide services like home delivery and credit facilities. There are two main types of retailers - itinerant retailers who move from place to place selling goods like hawkers, and fixed shop retailers who operate from a permanent location, ranging from small general stores to large supermarkets and department stores. Retailers play an important role in the economy by connecting producers and consumers.