The volume contains a new edition of the sources for Heraclides' life and thought. The text is by Eckart Schutrumpf and the translation by Peter Stork, Jan van Ophuijsen, and Susan Prince. The discussion of the sources includes contributions by twelve scholars: "La Tradizione Papirologica di Eraclide Pontico" by Tiziano Dorandi; "Heraclides' Intellectual Context" by Jorgen Mejer; "Heraclides of Pontus and the Philosophical Dialogue" by Matthew Fox; "Heraclides on Pleasure" by Eckart Schutrumpf; "Heraclides on the Soul and Its Ancient Readers" by Inna Kupreeva; "Unjointed Masses: A Note on Heraclides Physical Theory" by Robert W. Sharples; "Heliocentrism in or out of Heraclides" by Paul T. Keyser; "The Reception of Heraclides' Theory of the Rotation of the Earth from Posidonius to Simplicius: Texts, Contexts and Continuities" by Robert B. Todd and Alan C. Bowen; "Heraclides of Pontus on the Motions of Venus and Mercury by Alan C. Bowen and Robert B. Todd; "The Woman Not Breathing" by Philip van der Eijk; "Heraclides of Pontus on Homer" by Malcolm Heath; and "Heraclides and Musical History" by Andrew Barker.