Created about seven centuries ago, the Luzzatto High Holiday Mahzor is a scribal masterpiece comprising the liturgy for the two holiest festivals on the Jewish calendar, Rosh Hashanah and Yom Kippur. Preserved in exceptionally fine condition, it is one of only a small number of illustrated Ashkenazic mahzorim to have come down to us. This presentation will explore the manuscript's decorative program, text, and provenance with an eye toward understanding how the book can teach us about medieval and early modern Jewish custom, migration, and spiritual resilience.