The texts in this collection are revised versions of presentations given at the Coimbra International Conference on the Semantics of Culture emph Why ``Culture''?, held on November 24-25, 2011. Their common theme is the idea that the phenomenon of culture cannot be reduced to a substantialist vision of the diversity of manifestations of society and human beings. However, if one were to accept the concept of culture as a starting point for observing these manifestations, then it should also be adopted as a starting point for critical questioning, that is, for problematizing. The texts in this volume contribute to this philosophical problematization by pointing out - each with its own perspective of analysis - articulations of the phenomenon of culture as a theoretical object and as a thematic object.