- An Introduction to Early English Literature
- From Old English to Standard English
- Comparative Germanic Philology
- The Language of the Germanic Peoples
- Gothic and Old English
- The Origins of English Prose
- Beowulf and the Critics
- The Middle English Compendium
Articles and Essays
- The Date of Beowulf
- The Authorship of Beowulf
- The Structure of Beowulf
- The Vocabulary of Beowulf
- The Style of Beowulf
- The Relationship Between Beowulf and Other Old English Poems
- The Reception of Beowulf
- Old English Literature and the European Tradition
- The Legacy of Beowulf
Editions and Translations
- Beowulf: A New Edition
- The Anglo-Saxon Chronicle: A New Translation
- The Exeter Book: A New Edition
- The Vercelli Book: A New Edition
- The Blickling Homilies: A New Edition