 The preparation of the work required several adjustments, both formal and theoretical. From a formal point of view, Bessarion realized that a work written in Greek, as the In calumniatorem initially was, would not have had the desired impact. He therefore translated the work into Latin, and in order to make it stylistically appealing engaged a skilled Latinist, his secretary Niccolò Perotti, to revise the text. Perotti’s re-elaboration made the work more accessible and elegant, though he occasionally struggled to do justice to the philosophical concepts contained within.