Théobaldo Souss is a writer and intellectual researcher, known in the Arab literary sphere for his book *Luther*—a volume featured in a series dedicated to the study of prominent intellectual figures.
In this work, the author provides an in-depth analysis of the philosophical and theological thought of Martin Luther, the founder of the 16th-century Protestant movement. He focuses on the religious issues and shifts that Luther brought about in Europe, as well as his revolt against the sale of indulgences and the traditional doctrines of the Catholic Church, while also touching upon the social and political dimensions of that era.