Published annually, the journal Dumbarton Oaks Papers was founded in 1941 for the publication of articles relating to Byzantine civilization.In this issue: Margaret Mullet, “Ruth Juliana Macrides: 1949–2019”; Sihong Lin, “Justin under Justinian: The Rise of Emperor Justin II Revisited”; David Gyllenhaal, “Byzantine Melitene and the Social Milieu of the Syriac Renaissance”; Pavel Murdzhev, “The Introduction of the Moldboard Plow to Byzantine Thrace in the Eleventh Century”; Annemarie Weyl Carr, “The Lady and the Juggler: Mary East and West”; Robert S. Nelson, “A Miniature Mosaic Icon of St. Demetrios in Byzantium and the Renaissance”; Esra Akin-Kivanç, “In the Mirror of the Other: Imprints of Muslim–Christian Encounters in the Late Antique and Early Medieval Mediterranean”; Anna Chrysostomides, “John of Damascus’s Theology of Icons in the Context of Eighth-Century Palestinian Iconoclasm”; Max Ritter, “The Byzantine Afterlife of Procopius’s Buildings”; Jonathan L. Zecher, “Myths of Aerial Tollhouses and Their Tradition from George the Monk to the Life of Basil the Younger”; Nektarios Zarras, “Illness and Healing: Τhe Ministry Cycle in the Chora Monastery and the Literary Oeuvre of Theodore Metochites”; and Aleksandr Andreev, “The Order of the Hours in the Yaroslavl Horologion.”