The Sacred Text archive lists Euthyphro, Apology, Crito, and Phaedo by Plato as separate dialogues, which they are, they are of the same narrative to be included as study in sequence, as has been done for some time (e.g., the Penguin edition of The Last Days of Socrates). Expressed in dialogue form, they provide some of the most insightful moments in philosophy on the issues of religious piety, virtue and the role of conscience, justice and the notion of a social contract, and the nature of the soul and mortality. "The use of God in the singular is a reflection of the interest of Greek philosophy to discern generic essences from particular cases e.g., Athena, Zeus, Hermes etc are Gods - what is their common "God-essence"?