Marketing refers to activities a company undertakes to promote the buying or selling of a product or service. It includes advertising, selling, and delivering products to consumers or other businesses. Some it is done by affiliates on behalf of a company. Professionals who work in a corporation’s marketing and promotion departments seek to get the attention of key potential audiences through advertising. Promotions are targeted to certain audiences and may involve celebrity endorsements, catchy phrases or slogans, memorable packaging or graphic designs and overall media exposure. Marketing as a discipline involves all the actions a company undertakes to draw in customers and maintain relationships with them. Networking with potential or past clients is part of the work too, and may include writing thank you emails, playing golf with prospective clients, returning calls and emails quickly, and meeting with clients for coffee or a meal. At its most basic level, marketing seeks to match a company’s products and services to customers who want access to those products. Matching products to customers ultimately ensures profitability.