This volume is one of scarce studies of religious literature of the Polish-Lithuanian Commonwealth conducted by scholars from both Poland and Lithuania. What makes this endeavour important is mainly the will to overcome the frontiers and strains of the modern world that encourage exploring separateness instead of the realities of deep mutual interdependency. Łukasz Cybulski and Kristina Rutkovska analyse secular and religious writings of secular authors as well as those belonging to the clergy and religious orders. Their main interest lies in exploring the different genres of early modern Polish and Lithuanian sermons and novels, and in tracing this heritage to its social and literary context through the works’ material presence in manuscript form and in print. Other papers in this volume give insights into the origins of vernacular translations of the Holy Scriptures and the controversies surrounding them, as well as into the written testimonies of religious devotion and conversions. The aim has been not only to confront different kinds of texts and experiences, but to situate this heritage in its social and confessional context.