Early Greek Philosophy, vol 1, Introductory and Reference Materials, vol 2, Beginnings and Early Ionian Thinkers, prt 1, vol 3, Early Ionian Thinkers, pt 2, vol 4, Western Greek Thinkers, pt 1, vol 5, Western Greek Thinkers, pt 2, vol 6, Later Ionian and Athenian Thinkers, pt 1, vol 7, Western Greek Thinkers, pt 2, vol 8, Sophists, pt 1 vol 9, Sophists, pt 2