This isn't an Orthodox book (it's on Benedictine monasticism), but there's no Catholic Products forum. This is a classic general text in the field, and you've been working on getting more books on monastic studies, Gabe, so I thought maybe you could seek this one out:
The Love of Learning and The Desire for God: A Study of Monastic Culture by Jean Leclercq (Fordham University Press, 1998).
This book was one of my textbooks in seminary and one of the few remaining ones that I don't also have in Logos now which I'd like to have to be able to refer to easily again.