One of the oldest primary sources on the Olympian gods, their ancestors and progeny and the creation of the world according to Greek mythology (partly differing from Homer, though).

The 2 best-known works associated with Homer in an acclaimed new translation: the 10-year Trojan War & the Trojan horse creator's 20-year-journey home. (Both originally transmitted only orally, too.)

Rome's mythical foundation, lore and early history, artfully told in the classic text authored by Virgil's contemporary, Augustan historian Titus Livy.

The most comprehensive primary version of the tale of Jason and the Golden Fleece (Jason's ill-fated wife Medea in particular later also became the subject of several plays, though; see below).

By the father of the Greek tragedy: Sacrifice, murder and revenge at the beginning and the end of the Trojan War in king Agamemnon's house, but new civilization arises under Athena's guidance at last.

Sophocles's famous cycle about Oedipus, king of Thebes, who (unknowingly) kills his father and marries his own mother; and Antigone, who defends her divine right even if she has to die for it.

Euripides's take on Alcestis's self-sacrifice for her husband's life; Medea's fate after marrying Jason; Heracles's children in Athens (Heracleidae); and Hippolytus, Theseus, Phaedra and Aphrodite.

The Trojan War seen from a female perspective: Hecuba, Andromache, other Trojan Women and life's unpredictability; plus Ion, Apollo's unjustly unacknowledged son.

Euripides on Electra (different from Sophocles & Aeschylus!); the battle for Thebes between Oedipus's sons (The Phoenician Women); and king Pentheus' refusal to worship Dionysos (The Bacchae).

Background information on the mythological deities' cultural, spiritual and psychological importance in the context of ancient Greek society and of the humanistic tradition as a whole.

...and his look at Zeus's daughter/advisor, the patroness of wisdom, warfare & the city of Athens (also part 2 of my screen name; part 1 is a Titan, Greek mythology's equivalent of Iustitia: justice).

The standard before Graves's book (see above #1); more detailed - originally published in 3 parts & a true brick when compiled in 1 volume - but primarily for those seriously interested in this area.