"Speculum," published quarterly since 1926, is the first academic journal in North America dedicated to the study of the Middle Ages and enjoys a high reputation in the academic community. The journal covers not only the historical research of the Western Middle Ages but also the study of Arab, Byzantine, Hebrew, and Slavic cultures and societies closely related to medieval Europe, reflecting its cross-cultural and interdisciplinary research perspective.

The publication language of the journal is English, which allows it to attract and gather scholars from all over the world, promoting international academic exchange and cooperation. The content of the journal usually goes through a rigorous peer review process, ensuring the quality and innovation of academic research. As a benefit of membership in the Medieval Academy, all members can receive the "Speculum" journal for free, which not only increases the attractiveness of the academy but also encourages more scholars to participate in medieval studies.