This edition of Aeschylus' triumphantly reconciliatory final play of the Oresteian trilogy presents a newly constituted text that diverges substantially from Page's Oxford Classical Text of 1972. The translation is in prose, with literary and historical commentary, and an introduction dealing with myth, historical background and suggested staging of the play. There are also several appendixes on such topics as the judicial procedure apparently depicted in the play, the so called 'vote of Athena' and the lyric metres. [Greek text with facing-page translation, commentary and notes]