SOURCES AND FURTHER READING

Ancient
Arguably the most famous primary source for the Ancient Greek myths, the Iliad is one of the few surviving epic poems from antiquity. 

Set during the ten year Trojan War, the events told in the Iliad relate only to a period of a few weeks, but the characters in Homer's work allude to events leading up to, and during the war. 

The Iliad is more than simply a story of battles between the Achaeans and Trojans, and deals in depth with the infighting within the Achaean camp, especially between Achilles and Agamemenon; whilst also dealing with the concepts of fate, and the manipulations of the gods. 
Written in the 3rd Century BC, the Argonautica, as written by  Apollonius Rhodius, is a complete epic that deals with the voyage of the Argo. 

The Argo was of course the ship of Jason, and the other Argonauts, so obviously, the Argonautica deals with the Quest for the Golden Fleece. The Argonautica commences with the warning offered to Pelias about the man with one sandal, deals with the gathering of heroes at Iolcus, follows the journey to Colchis, and also the love affair that emerges between Jason and the sorceress Medea. 

Whilst not the whole story of Jason's life, the Argonautica brings forth the elements, that today, are the hallmarks of the Greek hero. 

Modern

Robert Graves was an English classicist, famed for his historical novels and poems. Now primarily known for his works relating to the First World War, and his historical novel I, Claudius, Graves also wrote The Greek Myths.

First published in 1955, The Greek Myths is a compendium of myths from Ancient Greece interpreted by Graves. The personal element that graves imbues into The Greek Myths, in his hypthesises and conclusions, makes for entertaining read, and an easy way to get an overview of the core myths of Ancient Greece. 

At the same time it has to be acknowledged that scholars mistrust the work precisely because it is the personal interpretation of Graves, with conclusions made that have but passing relation to the tales told in original sources. 
Colin Quartermain - - 12th January 2019