The discussion about postcolonial and decolonial theories has been taking on a growing and deserved international centrality in recent decades. Speaking by intellectuals from the global South, formerly called the Third World, has been a challenge to the theoretical and narrative molds imposed by colonization. This "thinking from the South" forces us and we, First World readers, to take into account some voices that we have never heard. It forces us to leave the comfortable universe of Eurocentric theories and to enter into the recognition of some "other" always undervalued. This book aims to meet this challenge and learn to look at each other with the eyes of subaltern people: the populations dominated by European powers over centuries, and today also our fellow citizens and fellow citizens in the great global metropolises.

Montserrat Galceran Huguet, born in Barcelona in 1946, is Emeritus Professor of Philosophy at the Complutense University of Madrid and currently Councilor of the Madrid City Council for the candidacy Now Madrid. Throughout his work, Galceran has tried to reconcile a political view with a detailed study of the reality object of his work, a "part" look and a rigorous analysis. Other works of his are: The invention of Marxism (Madrid, Iepala, 1997), _ Silence and oblivion. Heidegger's thinking during the 1930s (Hondarribia, Hiru, 2004) and, published in this editorial, Desire (and) Freedom. An investigation on the budgets of collective action (Madrid, 2010).