13-17 January 2016, invited conference participant, "Unter Druck: Illuminierte Handschriften und Inkunabeln im Zeitalter Gutenbergs, "Österreichische Akademie der Wissenschaften, Vienna, "Signs of Import and Influence in the Astrological Compendia Made for Wenceslas IV."
5-6 June 2015, invited conference participant, Mellon Art History Conference, A World within Worlds?: Reassessing the "Global Turn" in Medieval Art History, Northwestern University, "Permeable Membranes: Astronomy and Appropriation in the Leiden Aratea."
17-18 October 2014, Saint Louis Conference on Manuscript Studies, hosted by the Knights of Columbus Vatican Film Library at Saint Louis University, "Crafting Courtly Play in a Bohemian Copy of the Tractatus de Ludo Scacorum in Madrid."
8-11 May 2014, 49th International Congress on Medieval Studies, Double Session Co-Organizer with Christopher Lakey, "Making Meaning: Technologies of Transformative Production and Creative Consumption – (I) Manufacture of Meaning and (II) Diachronic Redefinition."
28-29 March 2014, Organizing Committee, "Medieval Art History after the Interdisciplinary Turn," University of Notre Dame, and Panel Co-Organizer with Christopher Lakey, "Medieval Art History in the Expanded Field."
7-8 November 2013, Invited Lecture, Cornell University, "Constellations of Influence in Prague: Medieval Cosmology in the Astronomical Anthology for Wenceslas IV," and Seminar, "Ideology and Identity in Medieval Cosmological Imagery."
11-12 October 2013 Saint Louis Conference on Manuscript Studies, hosted by the Knights of Columbus Vatican Film Library at Saint Louis University, Session Chair of "Masterpieces," and Paper Presenter, "Making It in Aachen – the Leiden Aratea and Looking at Louis the Pious' Court."
30 September 2013, Medieval Studies Colloquium, University of Virginia: "Medieval Diagrams."
16-17 November 2012, "Taxonomies of Knowledge," 5th Annual Lawrence J. Schoenberg Symposium on Manuscript Studies in the Digital Age, Schoenberg Institute for Manuscript Studies, University of Pennsylvania, and Free Library, Philadelphia, invited conference participant and paper presenter: "Reading the Heavens: Revelation and Reification in the Astronomical Anthology for Wenceslas IV."
31 August-14 September 2012, Faculty Speaker, "Danube River and the Habsburg Empire," Cavalier Travels: "Charles IV and His Children: Creating the Sovereign Artistic Legacy of the Luxembourg Dynasty in Bohemia;" "Building an Empire: Parlerian Architecture in the Bohemian Crown;" "The Gothic, The Golem, and the Ghetto: the Artistry of Bohemian Jews."
16 May 2012, Respondent, Graduate Fellows Forum: Ed Triplett, Scholar's Lab, University of Virginia.
14-18 March 2012, "Diagramm und Text: Diagrammatischen Strukturen und die Dynamisierung von Wissen und Erfahrung," Schloss Uberstorf, Freiburg (Fribourg), Switzerland, invited conference participant and paper presenter: "'So that you can understand this better': Art, Science, and Cosmology for Courtiers in William of Conches' Dragmaticon philosophiae."
22-25 February 2012 Meetings of the College Art Association, Session Chair, "Manuscripts without Moorings, Objects and Their Origins: Stylistic Analysis or Stylistic Attribution?" and paper presenter: "Tracking Their Training: Questions of Style for Carolingian Astronomical Manuscripts."
14-15 October 2011 Saint Louis Conference on Manuscript Studies, hosted by the Knights of Columbus Vatican Film Library at Saint Louis University: "Bohemian Machinations of Power and Courtly Life in Konrad Kyeser's Bellifortis."
12-15 May 2011 46th International Congress on Medieval Studies, Session sponsored by the Medieval Feminist Art History Project: "Celestial Sightings and Scientific Study: Terzysko's Gaze Laid Bare."
22 November 2010, Chrysler Museum of Art, Hermitage Foundation Auxiliary Lecture Series: "Celestial Signs in Turbulent Times: Astrology, Astronomy, and Philosophy in Late Medieval Prague."
13 November 2010, Corning Museum of Glass, Symposium in Honor of Meredith Lillich, entitled "Medieval Glass Illuminates what Art and Reason Reveal, a Celebration of Meredith Lillich's Passionate Legacy," Chief Conference Organizer and Paper Presenter: "Collective Creativity in the Astronomical Anthology of Wenceslas IV: Delineated and Open Pathways for Celestial Study."
23-24 September 2010 Jefferson Scholars Foundation, 2010 Forum for Interdisciplinary Dialogue, "Icons & Iconoclasm," Moderator, Panel 10, "The Value of Icons as Informative Tools in Science and Space Exploration."
11-13 March 2010 Conference entitled, "Cultural Crossings: China and Beyond in the Medieval Period," hosted by the University of Virginia, Conference Co-organizer, and paper presenter: "Islamic Silver for Carolingian Reforms and the Buddha of Helgo: Rethinking Carolingian Connections with the East, 790-820."
5 November 2009, Interdisciplinary Graduate Medieval Colloquium, University of Virginia: "Professional Development Seminar: Effective Strategies for Job Hunting."
2 November 2009, Medieval Studies Colloquium, University of Virginia: "Images, Objects, and Texts: Making Sense of the Middle Ages," "Medieval Artifacts in the University Collection: Visit to Museum."
16-17 October 2009 Saint Louis Conference on Manuscript Studies, hosted by the Knights of Columbus Vatican Film Library at Saint Louis University, Session Organizer of "Assembling the Truth: Critiquing the Practice of Compilation during the Middle Ages," and paper presenter: "Creating Carolingian Interpretations of the Constellations from Pagan Precursors: Exegetical Emendation in the Paintings and Diagrams of the Handbook of 809."
7-10 May 2009 44th International Congress on Medieval Studies, Session sponsored by Early Medieval Europe (publ. Wiley-Blackwell): "Monitoring the Signs: Regulating the Study of Astronomy and Astrology in the Ninth Century."
17-18 April 2009 Muller Colloquium entitled, "Towards a Theory of Collaborative Collaboration," hosted by the Department of French, University of Virginia, participant in the Concluding Roundtable.
6 December 2008 conference entitled, "The Shape of Time in the Middle Ages and Renaissance," hosted by Barnard College: "Redeeming the Time: The Christian Sacralization of the Zodiac in the Carolingian Empire."
17-18 October 2008 Saint Louis Conference on Manuscript Studies, hosted by the Knights of Columbus Vatican Film Library at Saint Louis University: "Creative Cosmologies in Late-Gothic Bohemia: Illuminated Diagrams and Memory Tools for the Court of Wenceslas IV." 15 September 2008, Medieval Studies Colloquium, University of Virginia: "Images, Objects, and Texts: Making Sense of the Middle Ages," "The Leiden Aratea;" repeated 14 September 2009.
21 June 2008 lecture at The Cloisters (of the Metropolitan Museum of Art), "Following the Stars: Heavenly Signs and Their Medieval Meaning."
27-30 March 2008 conference entitled, "Theorizing the Early Middle Ages," hosted by Pacific University, Forest Grove, Oregon: "Saving Science at the Carolingian Court."
25 August 2007 lecture at The Cloisters (of the Metropolitan Museum of Art), "Domestic Disturbances: Spiritual Confrontation in the Medieval Home."
20 March 2007 Metropolitan Museum of Art Museum Research Fellows Colloquium: "The Reins of Authority in Medieval Prague and the Trivulzio Saddle Carved for Bohemia."
2 March 2007 lecture at The Cloisters (of the Metropolitan Museum of Art), "Une Visite Guidée au Musée Médiéval" (in French.)
29 December 2006 lecture at The Cloisters (of the Metropolitan Museum of Art), "Eine Fuhrung in der Dauersammlung" (in German.)
26 August 2006 and 28 September 2006 lectures at The Cloisters (of the Metropolitan Museum of Art), "The Medieval Bed: A Platform for Social Transformation."
21 March 2006 Metropolitan Museum of Art Museum Research Fellows Colloquium: "'To Break Up That Celestial Machine With an Investigative Mind,' or a Study of the Iconographic Sources for the Carolingian Star Pictures in an Astronomical-Computistical Handbook From Madrid."
22-25 February 2006 Meetings of the College Art Association Session devoted to the "Sacred and Secular in Medieval Art: Bridging the Divide": "Sacred Study of the Constellations in Carolingian Encyclopedias." 26 November 2005 lecture at The Cloisters (of the Metropolitan Museum of Art), "Earthly Pleasures from Heavenly Treasures."
9-10 July 2005 conference entitled, "Illuminating Narrative: Visual Storytelling in Gothic Manuscripts," hosted by the Research Centre for Illuminated Manuscripts at the Courtauld Institute of Art: "Perceiving William of Conches' Arguments in the Dragmaticon Philosophiae: Philosophical continuous narration in a Codex from Madrid."
1-3 April 2004 Meetings of the Medieval Academy of America Session devoted to the Family, chaired by Pamela Sheingorn: "Purchasing Power: Symbolic violence and the patronage of Liudolfing women."