Robin Waterfield is a writer, living in Greece. His previous translations for Oxford World's Classics include Plato's Republic and five other editions of Plato's dialogues, Aristotle's Physics, Herodotus' Histories, Polybius' Histories, Plutarch's Greek Lives and Roman Lives, Euripides' Orestes and Other Plays and Heracles and Other Plays, Xenophon's The Expedition of Cyrus, Demosthenes' Selected Speeches and The First Philosophers: The PreSocratics and the Sophists. He is the author of Dividing the Spoils: The War for Alexander the Great's Empire (Oxford, 2011). Andrew Erskine is the author of The Hellenistic Stoa: Political Thought and Action (Duckworth/Bristol Classical Presss 1990, 2011), Troy between Greece and Rome: Local Tradition and Imperial Power (Oxford, 2001), and Roman Imperialism (Edinburgh UP, 2009). He has edited a number of books including A Companion to the Hellenistic World (Wiley-Blackwell, 2003). He is a general editor of the Wiley-Blackwell Encyclopedia of Ancient History (2012).