"an impressive undertaking … Saak offers modern students and scholars an important contribution to late medieval religion and particularly the Augustinian influence on the fifteenth century and beyond. The volume is a welcome addition for students and scholars of late medieval religion and we can only hope for the quick publication of subsequent volumes in this project."
Ronald Stansbury, Roberts Wesleyan College. In: Sehepunkte 16/3 (15 March 2016).

"Saak offers not a critical edition in the traditional sense, but what he calls a "study edition," or critically reliable and readable translations. His volumes are not exhaustive in their mining of original manuscripts, but they offer critical access to an all-too-long-ignored author and area of study. Saak succeeds in presenting the source material in a way that makes readers want more, and with five substantial volumes to come they will no doubt get their wish [...] Both the translation and the Latin text on which it is based are new creations, serving though to represent instrumentally Jordan's work of nearly 700 years ago in the hope that by doing so, Jordan's voice, now however distant and distorted, might, to the extent possible, be heard once again. I for one eagerly await the next volumes and am glad Saak gives Jordan voice once again after 700 years of relative silence."
Roy Hammerling, Concordia College. In: The Medieval Review 15.10.25 (2015).

“Einer der gegenwärtig besten Kenner des mittelalterlichen Augustinismus und des Ordens der Augustineremiten, der amerikanische Historiker Saak, legt mit dieser Textausgabe einen weiteren Band seiner umfangreichen Beschäftigungen mit Jordan von Quedlinburg vor […]. Aufbereitung des Textes und Übersetzung erlauben einen detaillierten Einblick in die insgesamt sehr geringe Überlieferung von Kommentaren zum herrengebet und zugleich die vorhanden Geistesbeziehungen einer bestimmten Kommentatorengruppe, die […] für die Ausbildung des jungen Luther von erheblicher Bedeutung sein sollte.”
Markus Wriedt, Goethe-Universität Frankfurt am Main. In: Archiv für Reformationsgeschichte, Jg. 45 (2016), pp. 8-9.