Specialists are workers that have been removed from working on map tiles and dedicated to the creation of one type of game resource. Each type of specialist produces one distinct effect. Entertainers increase city happiness, Merchants earn extra gold, Scientists conduct extra research, and Laborers augment the city production. As a city's population grows, it will become more desirable to remove workers from the workview and hire them as specialists. Remember that specialists produce no food. If you want to support a large number of specialists in a city, you will need to have the city's workers grow enough food for all.