Introduction: eikos in ancient Greek thought -- Eikos arguments in Athenian forensic oratory / Michael Gagarin -- Eikos in Plato's Phaedrus / Jenny Bryan -- Aristotle on the value of "probability," persuasiveness, and verisimilitude in rhetorical argument / James Allen -- "Likely stories" and the political art in Plato's Laws / Ryan K. Balot -- Open and speak your mind: citizen agency, the likelihood of truth, and democratic knowledge in archaic and classical Greece / Vincent Farenga -- Counterfactual history and Thucydides / Robert Tordoff -- Homer's Achaean wall and the hypothetical past / Karen Bassi -- Play of the improbable: Euripides' unlikely Helen / Victoria Wohl -- Revision in Greek literary papyri / Sean Gurd -- Likeness and likelihood in classical Greek art / Verity Platt -- "Why doesn't my baby look like me?" Likeness and likelihood in ancient theories of reproduction / Daryn Lehoux -- Galen on the chances of life / Brooke Holmes -- Afterword / Catherine Gallagher