Matthew Cheung Salisbury, Past Imperfect Series. Croydon: ARC Humanities Press, 2018, 92 pages.

Matthew Cheung Salisbury, a Lecturer in Music at University and Worcester College, Oxford, and a member of the Faculty of Music at the University of Oxford, wrote this book for ARC Humanities Press’s Past Imperfect series (a series comparable to Oxford’s Very Short Introductions). Two of his recent, significant contributions to the field of medieval liturgical studies include