Everyday Life in the Modern World - Paperbackby Henri Lefebvre (Author) Philosopher, sociologist and urban theorist, Henri Lefebvre (1901 1991) was one of the great social theorists of the twentieth century and pioneered the theorization of everyday life and space. In this fascinating book, which became a manifesto for urban activism upon its first publication in the 1960s, Lefebvre poses a major question: what gives a society undergoing constant change the illusion of stability? For Lefebvre,