Miguel Ibanez Berganza — INFN Parma # A complex-systems look at facial attractiveness # We immediately perceive beauty, although the criteria involved in this complex process are unknown in general. Focusing on the case of facial attractiveness, we pose some questions from a complex-systems perspective. What are the relevant features, (shapes, distances, or proportions), determining attractiveness, and to what extent their mutual correlations matter? Can beautiful faces be characterised as local maxima in some space (so that local variations lower their attractiveness)? To what extent our preferences are universal in such a space? We propose an experimental scheme leading quantitative answers to these questions.