The working class (or labouring class) comprises those engaged in waged or salaried labour, especially in manual-labour occupations and industrial work.[1][2] Working-class occupations (see also "Designation of workers by collar color") include blue-collar jobs, some white-collar jobs, and most pink-collar jobs. Members of the working class rely exclusively upon earnings from wage labour; thus, according to more inclusive definitions, the category can include almost all of the working population of industrialized economies, as well as those employed in the urban areas (cities, towns, villages) of non-industrialized economies or in the rural workforce.