Joachim Yeshaya (PhD [2009] University of Groningen, the Netherlands) is a postdoctoral researcher at KULeuven, Belgium, where he teaches courses on classical and post-classical Hebrew language and literature and on Judaism and Islam. Dr. Yeshaya has authored two books on the oeuvre of Moses Darʿī, a 12th-century Egyptian Karaite-Jewish poet (Medieval Hebrew Poetry in Muslim Egypt, Leiden/Boston: Brill, 2011; Poetry and Memory in Karaite Prayer, Brill, 2014). He has co-edited, with Elisabeth Hollender (Goethe University Frankfurt), the volume Exegesis and Poetry in Medieval Karaite and Rabbanite Texts (Brill, 2017), and with Elisabeth Hollender and Naoya Katsumata (Kyoto University), the volume The Poet and the World (De Gruyter, 2019). Since 2019 he is also Medieval Judaism editor for the multivolume Encyclopedia of the Bible and Its Reception (De Gruyter).