Mahzorim are Hebrew prayer books. The prayers included were often used for the High Holidays of Rosh Hashanah and Yom Kippur, though other daily prayers and prayers corresponding to special days of the year may also be provided. This is what separates mahzorim from other Hebrew prayer books. While most other prayer books could contain a myriad of prayers of different traditions addressing different days and times of the year, the mahzor was intended to ensure some sense of continuity between individuals, households, and congregations as to how the prayer and worship services of High Holidays would be conducted.
Halperin, Dalia-Ruth. “The Hidden Couple: An Unexecuted Underdrawing in the Catalan Micrography Mahzor,” Between Judaism and Christanity: Art Historical Essays in Honor of Elisheva (Elisabeth) Revel-Neher. eds. Katrin Kogman-Appel and Mati Mayer (Leiden: Brill, 2009) pp. 353-369
Kogman-Appel, Katrin. A Mahzor from Worms (Cambridge: Harvard University Press, 2012)
-------“The Scales in the Leipzig Mahzor: Penance and Exchatology in Early Fourteenth-Century Germany,” Between Judaism and Christanity: Art Historical Essays in Honor of Elisheva (Elisabeth) Revel-Neher. eds. Katrin Kogman-Appel and Mati Mayer (Leiden: Brill, 2009) pp. 307-318