The variety of cultural expressions can be traced back to Renaissance and with it the appearance of the Modern Age, it was extended and it was possible the appeal to the differentiation that exists between human beings. This tendency, a bit fictitious in the reality of life, has succeeded in creating a phenomenon of expression that was previously unknown to human society in our postmodern society: the phenomenon of subculture. So we find on one side the “Official Culture” and in counterpart to the various “Subcultures” within a same time and space. Subcultures are often defined by their opposition to the values of the larger culture to which they belong. The members of a subculture will often point out their belonging to it through a distinctive and symbolic use of the style associated with clothing, music and other customs of its members, and also of the ways in which these same symbols are interpreted by members. of the dominant culture. If the subculture is characterized by a systematic opposition to the dominant culture, then it can be described as a counterculture.The counterculture refers to an organised and visible movement whose action affects many people and persists for a period of time; the word can and must be understood in two senses: on the one hand, it constitutes an offensive against the (official) Culture; on the other hand, a “counter culture” that remains (at least at first) outside the market and the means of mass formation. It is, then, cultural manifestations that are presented as an alternative to the predominant culture, generally preserved and transmitted by small social groups. On multiple occasions counterculture movements have been absorbed by the superstructure, which deactivates them, turning them into harmless fashions. In these cases, it is misleading to continue using the term, since the movements thus assimilated are part, as “subcultures” or by-products, of the dominant culture and do not oppose it.
When “ordinary” people begin to dress differently, to talk differently, to behave in a way not customary according to the usual, it attracts a lot of attention and sometimes it is a sign of alarm for family and friends, they wonder what is happening with this subject that acts and behaves differently? This social phenomenon is constantly found among thousands of people that we encounter on the school, street or at work and it is possible that their change is motivated by the fact that they have integrated into a movement, or striking, extravagant and peculiar fashion. We refer to the “Urban Tribes”. The gangs and groups, those movements called punks, dark, emo, neo-Nazis, rockers, and many more that we sometimes look at with strangeness and sometimes even with fear.
Urban Art or Street Art takes a fundamental role, as a form of expression, as a political and cultural claim. The city becomes a showcase and maximum exponent of freedom of expression. In recent years there has been a notable increase in the media and social projection of this type of art, but it is not a phenomenon that has just emerged, it has been implanted in cities all over the world for decades, sneaking into its streets.
Urban art emerges as a form of anarchic political claim insofar as it is not institutionally regulated and whose distinguishing sign is the authorship of youth, but in some regards it is not.
Urban art brings together very different currents of action in origin, form and intention. Its best known version is the graffiti technique, considered a marginal form of culture but not inferior in terms of its expressive abilities. It is the most primary and vindictive representation of urban art, based on taking the walls of the city as a blank paper available to anyone who has something to expose the world. It has been the technique most used for years to express dissatisfaction with lack of expression or biased rights.