"Johann Ronge; Holy Cloak of Trier; The New German Catholic Church" is a book revealing the history of the conflict that occurred in 19th century Germany between the Catholic Church and progressive believers. The anonymous author and Johann Ronge himself testify to the events related to the display of the Holy Cloak of Christ in the Trier Cathedral and the rise of the Church, which rejected the worship of shrines and announced important transformations for Christianity. This book will help to delve deeper into the historical context of religious reforms and understanding the importance of faith and traditions in the development of Christianity.