A conversation with Linda Safran (Pontifical Institute of Mediaeval Studies, Toronto) on the hitherto-unexplored world of Byzantine diagrams. We talk about maps, sundials, and more abstract representations of the world and even God. The conversation is based on Linda's papers in a volume she co-edited, The Diagram as Paradigm: Cross-Cultural Approaches (Dumbarton Oaks 2022), as well as "A Prolegomenon to Byzantine Diagrams,” in the edited volume The Visualization of Knowledge in Medieval and Early Modern Europe (Brepols 2020) 361-382. Also check out her dynamic website on medieval art and architecture.