Bookbinding is the process of combining printed sheets into books, magazines, catalogs, folders, and directories. After printing, the material is folded, glued, stitched, stapled, and trimmed. Workers who set up, operate, and maintain the bookbinding machines are called bindery workers; workers who perform highly skilled hand-finishing operations are called bookbinders.
Geological engineers, sometimes referred to as mining engineers, find and prepare minerals, metals, and coal to be used in manufacturing industries. They may design open and underground mines and supervise mine construction, devise means of transporting minerals to manufacturing plants, and evaluate the safety and environmental soundness of the mines. Some geological engineers develop operations to separate minerals from the dirt or rock, while others design new mining equipment.
Some hotel management companies manage and operate multiple hotels; others provide consulting and outsourcing services in areas such as hotel operations, reservations sales and systems, physical plant maintenance, and food services. In terms of hotel management occupations, two key staffing requirements are hotel managers and hotel desk clerks.
Water transportation workers, also known as merchant mariners, oversee the movement of cargo and passengers throughout oceans, rivers, canals, harbors, and other waterways. They may operate deep sea merchant ships, tugboats, ferries, barges, offshore supply vessels, cruise ships, and other watercraft. Captains, mates, and pilots supervise the operations of ships and water vessels on United States waterways.