Appearing for the first time in English, Karl Anton Nowotny's Tlacuilolli is a classic work of Mesoamerican scholarship. A concise analysis of the pre-Columbian Borgia Group of manuscripts, it is the only synthetic interpretation of divinatory and ritual codices from Mexico. Originally published in German and unavailable to any but the most determined scholars, Tlacuilolli has nevertheless formed the foundation for subsequent scholarly works on the codices. Its importance extends beyond the study of Mexican codices: Nowotny's sophisticated reading of these manuscripts informs our...