The Conversation newspaper and ElDiario.es publish an article visualizing the serious situation of school segregation by economic level experienced by the Spanish education system. In the article, F. Javier Murillo, highlights the most specific data of the latest published studies on school segregation, as well as the main causes that generate it. You can check the full article at: https://www.eldiario.es/sociedad/Escuelas-escuelas-estudiantes-deberia-cambiar_0_946305465.html.
In addition, the UNESCO Chair in education for social justice currently develops a line of work on this same theme. You can check all the information in the following link: http://www.catedraeducacionjusticiasocial.org/en/school-segregation/