No text was as widely disseminated in early Baltic literature as Martin Luther's Small Catechism. In fact, it marked the dawn of the literature of all three Baltic languages. This comparative study of the Old Prussian, Old Lithuanian, and Latvian versions of Small Catechism gives insight about the idiosyncrasies of the Old Prussian version and the work of its translator Main description: Im frühen baltischen Schrifttum hat kein Text eine so große Verbreitung erfahren wie der "Kleine Katechismus" von Martin Luther. Tatsächlich markiert er den Beginn des Schrifttums aller drei baltischen Sprachen. Der vorliegende Vergleich der altpreußischen, der altlitauischen und der altlettischen Fassung verschafft einen Einblick in die Besonderheiten der altpreußischen Fassung und in die Tätigkeit des Übersetzers. Main description: No text was as widely disseminated in early Baltic literature as Martin Luther’s Small Catechism. In fact, it marked the dawn of the literature of all three Baltic languages. This comparative study of the Old Prussian, Old Lithuanian, and Latvian versions of Small Catechism gives insight about the idiosyncrasies of the Old Prussian version and the work of its translator. Biographical note: Pietro U. Dini, University of Pisa.