This document summarizes the key departments in a hotel's organizational structure. It divides departments into revenue centers, which directly generate income, and cost centers, which support revenue-generating functions. Revenue centers include front office, food and beverage, and sales and marketing. The document also distinguishes between "front of house" departments like front desk and food service that interact with guests, and "back of house" ones like housekeeping and engineering with limited guest contact. It provides examples of department heads and briefly outlines some core responsibilities of rooms division, food and beverage, and other operational areas.