The research project “Cities of Readers” aims to supply a new phase in the scholarly exploration of the “long fifteenth century” (1400-1550), a period characterized by great cultural, political and religious changes: a stronger urbanization, the development of religious observance movements, a growing social mobility accompanied by a rising literacy and an increasing book production. This pivotal period in Dutch and European history will be approached by studying the participation of lay people in the production and the transmission of religious knowledge through their engagement in reading, textual and performative activities. The project will innovatively approach religious knowledge in terms of dynamics, exchanges and negotiations and will consider both individuals and groups (“communities of interpretation”, i.e. formal and informal textual communities sharing texts and knowledge) as objects of research. Reading activities will moreover be studied in relation to the specific places and spaces in which they were generated.