2018 “¿En camino a 1391? Abner de Burgos/Alfonso de Valldolid sobre la conversión forzosa.” Lecture delivered on May 18, 2018 at the University of Granada.
2014 “A Two-Sidded Dagger: Ramon Martí’s Philosophy of Language and Mission.” Paper delivered on December 5, 2014 in a joint lecture with Thomas Burman at the Ohio State University Center for Medieval and Renaissance Studies.
2014 “Conversion as a Historiographical Problem” [Begins at minute 45:00] Paper delivered on May 26, 2014, at the conference “Debating Conversion in Different Historical Contexts” (May 26–29, 2014) at Ben Gurion University of the Negev, Be’er Sheva, Israel.
2011 “Conversion and Narrative in the Medieval Mediterranean”
A lecture delivered on April 12, 2011 at the Institute for the Humanities, University of Michigan.
2011 “Latin Against Hebrew, Latin Against Arabic: Linguistic Authority in the Medieval Mediterranean.”
A lecture delivered on January 19, 2011 at the Center for North African and Middle Eastern Studies, University of Michigan.
2008 “Hijacking Scriptures in Medieval Polemics”
A lecture delivered on November 17, 2008 at the Center for Middle Eastern and North African Studies, University of Michigan.
2019 Podcast episode entitled “He is Still Israel? Conversion and Sephardic Identity before and after 1391.”
Produced as part of the “Frankely Judaic” podcast from the Frankel Center for Judaic Studies at the University of Michigan.
2013 Interview of Szpiech by Prof. Esther Pascua (in Spanish): Los estudios mediterráneos y la interacción transcultural [Mediterranen Studies and Transcultural Interaction] [Interview begins at minute 32:20] Aired on October 14, 2013 on Radio Círculo (100.4 FM, Madrid), on the show Contratiempo: historia y memoria.