Benjamin Seebohm Rowntree, CH was an English sociological researcher, social reformer and industrialist. He is known in particular for his three studies of poverty in York, conducted in 1899, 1935, and 1951.

The working class, or in Marxist terms, the proletariat, includes all employees who are compensated with wage or salary-based contracts. Working-class occupations include blue-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 of non-industrialized economies or in the rural workforce.