The working class (also labouring class and proletariat) are the people employed for wages, especially in manual-labour occupations and in skilled, industrial work. Working-class occupations include blue-collar jobs, some white-collar jobs, and most service-work jobs. The working class only rely upon their earnings from wage labour, thereby, the category includes most of the working population of industrialized economies, of the urban areas (cities, towns, villages) of non-industrialized economies, and of the rural workforce.