A hotel manager, hotelier, or lodging manager is a person who manages the operation of a hotel, motel, resort, or other lodging-related establishment. Management of a hotel operation includes, but is not limited to management of hotel staff, business management, upkeep and sanitary standards of hotel facilities, guest satisfaction and customer service, marketing management, sales management, revenue management, financial accounting, purchasing, and other functions. The title "hotel manager" or "hotelier" often refers to the hotel's General Manager who serves as a hotel's head executive, though their duties and responsibilities vary depending on the hotel's size, purpose, and expectations from ownership. The hotel's General Manager is often supported by subordinate department managers that are responsible for individual departments and key functions of the hotel operation. The size and complexity of a hotel management organizational structure varies significantly depending on the size, features, and function of the hotel or resort. A small hotel operation normally may consist of a small core management team consisting of a Hotel Manager and a few key department supervisors who directly handle day-to-day operations. On the other hand, a large full-service hotel or resort complex often operates more similarly to a large corporation with an executive board headed by the General Manager and consisting of key directors serving as heads of individual hotel departments. Each department at the large hotel or resort complex may normally consist of subordinate line-level managers and supervisors who handle day-to-day operations