Daniel Caballero Juliá has a PhD in “Sciences Humaines et humanités; spécialité Sciences et Techniques de l’Activité Physique et du Sport” (human sciences and humanities; speciality of sciences and techniques of physical and sports activities) from the University of Toulouse III Paul Sabatier (UPS) in France, and he has a sociology degree from the University of Salamanca. He has a master’s degree in advanced multivariate data analysis from the University of Salamanca, and conducts research related to socialization and the statistical analysis of textual data. He works as a lecturer at the University of Salamanca (Spain).