- Athenian constitutional history.
- Athenian politics (5th. and 4th. centuries BC)
- Greek international affairs (5th. and 4th. centuries BC)
- Greek Law
- Greek historiography (especially Local History)
- Greek Epigraphy (especially Athenian 4th. century)
- Greek Rhetoric
These interests have been expressed in several articles on Athenian constitutional and political history, and on Athenian foreign policy.
In the area of epigraphy I have edited the second volume in the series on Translated Documents of Greece and Rome, entitled, From the end of the Peloponnesian War to the Battle of Ipsos (Cambridge 1985).
My work in the field of historiography has focused on the Atthides, the Local Historians of Attika, and resulted in the book Androtion and the Atthis (Oxford 1994) and entries on the genre and the individual Atthides in the revised Oxford Classical Dictionary (Oxford 1996). Finally in 2008 I produced a translation with introduction and commentary of all the fragments of the Atthidographers for Routledge, entitled “The Story of Athens.”
In the field of Greek rhetoric my particular focus has been on the orator Demosthenes. In 2000 I traced his reception in the Western Tradition in a chapter entitled, ‘Demosthenes in the Underworld: The nachleben of a rhetor’ in Demosthenes: Statesman and Orator (Routledge), and in 2008 I completed a new edition of the Greek text, with introduction, translation and commentary, of the papyrus that contains part of the Hellenistic scholar Didymos’ On Demosthenes (Oxford).
My work in the field of Athenian politics is represented by my recent book, Athens Transformed, 404-262: From Popular Sovereignty to the Dominion of Wealth (Routledge, 2015).
I am currently under contract with Cambridge University Press to produce a three-volume translation with extensive notes of books 14-20 of Diodoros of Sicily’s Bibliotheke Historike.