Stephen Kidd specializes in Greek literature of the classical period, especially comedy and philosophy. His first book Nonsense and Meaning in Ancient Greek Comedy (Cambridge, 2014) asks why comedy, unlike other genres, gives rise to the perception that some part of it is not meaningful (“just silly”, “just funny”) despite the fact that new meanings continue to be discovered year after year. Now he is writing a book tentatively entitled Paidia: The Concept of Play in Ancient Greek Thought which asks the question how did play and aesthetics – a relationship often wrestled with by modern play theorists – become separated in the first place? The primary authors are Plato and Aristotle, but attention is also given to the nuts and bolts of games, toys, and ancient child psychology (which provides the pais of paizo). He has also written on the meanings of Greek words, dreams, science, and what Herodotus has to say about virtual worlds.