Pietism is a reform movement originating among German Lutherans in the 17th century. It focused on personal faith, reacting against Lutheran Church's emphasis on doctrine and theology over Christian living. The movement quickly expanded, exerting an enormous influence on various forms of Christianity, and became concerned with social and educational matters. Indeed, Piestists showed a strong interest in issues of social and ecclesial reform, the nature of history and historical inquiry, the shape and purpose of theology and theological education, the missional task of the church, and social justice and political engagement. Though, the movement remained largely misunderstood, especially in Anglo-American contexts: negative stereotypes depicted Pietism as a quietist and sectarian form of religion, merely concerned with the 'pious soul and its God'. The main proposal of the editors of this volume is to correct this misunderstanding: assembling a deep collection of essays written by scholars from a variety of fields, this work demonstrates that Piestism was a movement characterized by great depth and originality. Besides, they show the vitality and impulse of Pietism today and emphasize the ongoing relevance of the movement for contemporary problems and questions.