He is now the editor of what will be an eight volume work on the principal texts of the second millennium related to the Virgin Mary. Before this publication, many of these texts were unavailable or hardly accessible in English.
Additional bibliography is given in the footnotes.
The translations are always clear and fluid. Only with Ambrose, Augustine and Jerome do significant writings appear in the West. This work provides a solid introduction for students and will be of value to those who from an ecumenical perspective seek the origins of the later doctrinal developments. These authors are closer to the actual historical events and witness to the oral traditions. In these writings, there are not separate treatises or books of devotion.