»The Concept of Asceticism in Max Weber's Sociology of Religion«: This work is a research on Max Weber's concept of asceticism and its significance in his sociology of religion. The study elaborates that asceticism is not only a central concept in his studies on religion but also relates to key topics in his whole work as for example conduct and ethics, rationalism, his theory of interpretive sociology, the ideal type, and the so-called disenchantment of the world.