Johan T. Erlandsson-Díaz is a Swedish researcher specializing in church history, religious studies, and theology. His research explores Communio and ressourcement Catholic thought, focusing on its relationship with Catholic tradition, secularism, modernity, gender, and the differences between liberal and traditional Catholic practices in the secular age. Johan critically examines how theological and historical developments within Catholicism shape contemporary understandings of faith, offering new insights into the evolving dynamics between religion and society. By tracing the development of theological thought throughout history, his work sheds light on how historical events and theological shifts continue to influence modern Catholic practices and beliefs. Outside of his academic work, Johan is passionate about reading and collecting books, painting historical miniature figures, and enjoys spending time with his wife.