- Empire: A Very Short Introduction
- PhraseBook for Writing Papers and Research in English
- Afrocentrism: Mythical Pasts and Imagined Homes
- The Personal Pronouns in the Germanic Languages: A Study of Personal Pronoun Morphology and Change in the Germanic Languages from the First Records to the Present Day (Studia Linguistica Germanica)
- Ireland and Empire: Colonial Legacies in Irish History and Culture