The Monastic Order in England by Dom David Knowles was originally published in 1940 and was quickly recognised as a scholarly classic and masterpiece of historical literature. It covers the period from about 940, when St Dunstan inaugurated the monastic reform by becoming abbot of Glastonbury, to the early thirteenth century. Its core is a marvellous narrative and detailed analysis of monasticism in twelfth-century England, brilliantly set in the continental background of all the monastic movements of the day - with a vivid evocation of Anselm, Ailred, Henry of Blois and a host of other central figures. Dom David himself brought this second edition up to date in 1963.
Fr. David Knowles, OSB, FRHistS was born Michael Clive Knowles and was given the name 'David' when he joined the Order of Benedict in 1923. He was a historian and professor at University of Cambridge from 1947 to 1968 and served as president of the Royal Historical Society from 1957 to 1961.
*Note: there is more than one author named 'David Knowles,' however this particular individual is the most widely published.