Scholarship on anti-Reformation printed polemic has long neglected east-central Europe. This article considers the corpus of early anti-Reformation works produced in the Polish monarchy (1517-36), a kingdom with its own vocal pro-Luther communities, and with reformed states on its borders. It places these works in their European context and, using Jagiellonian Poland as a case study, traces the evolution of local polemic, stresses the multiple functions of these texts, and argues that they represent a transitional moment in the Polish church's longstanding relationship with the local printed book market.