This volume of Hispania Judaica Bulletin presents the first collection of studies dedicated to the impact of the Iberian converso crisis on the interpretation of Paul’s life and teachings. We believe this to have been a significant historical phenomenon—one which we may call Converso Paulinisms. By way of introduction, we briefly present the main developments from which this concept derives its rationale and the productive end we hope it can serve. We begin with the lessons we learned from recent developments in Pauline studies and the readings of Paul by Church authorities, theologians, and contemporary thinkers. Then, we move on to consider their implications in Late Medieval and Early Modern setting of the converso phenomenon.