Distribution channels refer to the network of businesses and intermediaries through which a product or service reaches the final consumer. There are three main types of distribution channels: direct channels which involve no intermediaries, indirect channels which use intermediaries like wholesalers and retailers, and hybrid channels which combine direct and indirect methods. Choosing the appropriate distribution channel depends on factors like the product, target market, costs, and level of control desired. Distribution channels aim to maximize coverage, optimize logistics efficiency, improve customer experience, and increase sales and revenue.