The menu is essential to a food service operation as it dictates organization, management, and design. It communicates the operation's image to guests and influences employees' tasks. For managers, the menu is the primary marketing tool and determines purchasing, equipment needs, staffing levels, and skills. Menus are typically categorized by schedule (fixed or cycle), meal period (breakfast, lunch, dinner), pricing style (a la carte, prix fixe), or specialty. Careful menu planning and balancing is important, considering guests, the operation's resources and theme. Well-designed menus complement the space and sell menu items through headings, descriptions, and supplemental information.