Under the title ‘From Anti-Judaism to Antisemitism Today: Keys to Understanding a Hatred That Changes, but Does Not Disappear’, Dr. José Cruz Díaz, professor in the Department of Basic Legal Sciences at the University of Seville and co-director of the Seminar on Holocaust-Shoah and Antisemitism Studies at Pablo de Olavide University, delivered a lecture last May 9th. In it, he traced a journey that was both clear and rigorous through the different forms this hatred has taken throughout history, including such current and urgent issues as anti-Zionism. An invitation to reflect on a phenomenon that challenges our societies.