Marilyn Dunn's book, The Emergence of Monasticism, has caught my eye in my favourite theological library for some time. My interest in monasticism isn't an interest in becoming one, but I do find the monastic witness one that is worthwhile to consider, especially because monastics are the experts (in so far as one can be) on prayer/meditation and its challenges. And, of course, I'm an inveterate history geek, so any book which gives me background on anything I'm interested is going to attract my eye.
Dunn presents the development of the monastic movement from its origins in the Egyptian and Syrian deserts through to the distinctive Celtic monasticism and developments in England which are, particularly, well attested. Her approach combines a strong grasp of the history with a detailed understanding of the main texts- rules, monastic histories, hagiographies, that kind of thing. If you need a good starting place for understanding the early development of monasticism, this is definitely the place to start. Dunn is a fine scholar with a lucid style which should attract professionals and amateurs alike.
She does take some departures from the main currents of her field (most decent scholars do). This is particularly clear in the re-dating of several later Rules. The most notable is the Rule of the Master, which Dunn re-dates close to a century later. This is an interesting change because most scholars have placed it a few decades before the Rule of St. Benedict, arguing that Benedict knew it and toned down its strictness in his own Rule. Dunn argues the relationship goes the other way. Benedict's Rule was the earlier one and the Rule of the Master adapted that Rule under the influential of the rather strict guide of St. Columbanus and the Celtic pentitentials. I can't evaluate that claim as I don't know the text of the Rule of the Master, but it is a substantial change.
This is a superb book and I strongly recommend it.