Pop Art, understood as a manifestation at an international level which bursts into existence in the late fifties has no manifesto and is heterogeneous in technique, ideas and the means it employs; it constitutes the axis that is articulated by the exhibition at the Museo Nacional Centro de Arte Reina Sofía. This is a movement that is primarily urban - it has a contemporary development in the more important cities involved in the art scene in the second half of the twentieth century: New York, Los Angeles, San Francisco, London, Paris, Dusseldorf, Rome and Milan - it establishes a special link with mass culture, which it seeks to reflect. In this mass culture it finds its themes, its vocabulary, its icons, its artistic resources and even its means of diffusion, converting the information overload and visual stimuli that assault the passerby, the spectator and the consumer in their daily lives, into the engines of their work. Pop comes as a shock to traditional art in its broadest sense (media, institutions, education, notion of the artist, authorship and even unique work) and also to what it had immediately proceeded (abstract expressionism and informal art). Screen printing, collage or the use of pre-existing images imply a criticism of the artist’s subjectivity, avoiding recognition (leaving a mark) of their involvement in the work of art. Also, in their reaction against good taste and high culture, there are many times when kitsch is recovered as the peak in aesthetics.