Thorstein Veblen 
The Theory of the Leisure Class 

Considered the first in-depth critique of consumerism, economist Thorstein Veblen's 1899 book The Theory of the Leisure Class has come to be regarded as one of the great works of economic theory. Using contemporary and anthropological accounts, Veblen held that our economic and social norms are driven by traces of our early tribal life, rather than ideas of utility.