The term "postmodern" is one of the most complex and controversial in the social and humanitarian sciences. For several decades, various thinkers and scholars have proposed their own interpretation of this concept. The most famous social geographer to date, David Harvey, is one of them. In his main book, Harvey explains the meaning of the term "postmodern" as a state of actual culture, and shows that the logic of capital is behind tangible and dynamic changes in cultural life. The scholar argues that the origins of cultural change lie "ultimately" in economics. In the course of his research, he traces the socio-economic and conceptual history of Art Nouveau (from the Enlightenment to the present day) and how the transition from Art Nouveau to postmodern in art, urbanism, literature, architecture, cinema was carried out. Harvey proves that space-time compression occurred over several centuries and by the 1970s was the solution to the capital overhauling crisis. So, from modernist Fordism there was a transition to postmodern postfordism, defined as "flexible accumulation." Although Harvey wrote this book back in 1989, he did not abandon his ideas, and the events that have occurred since have proved him right.