http://agathe.gr/democracy/the_speakers.html
The Speakers Litigants spoke on their own behalf, although occasionally using speeches prepared by trained professionals; skillful rhetoric was necessary in order to sway a jury. The speeches written by ... The speeches written by several noted orators survive today, those of Lysias, Lykourgos, Hypereides, Antiphon, Demosthenes, Aeschines, and Isokrates.