In Visible and Invisible in Greek Philosophy, Professor Yamakawa has collected a number of groundbreaking essays covering the entire history of Greek philosophy from the Presocratics to the Postaristotelians. He explores in a systematic and methodical manner "the dynamic correlation between the visible and the invisible aspects of Greek philosophers" particularly thoughts."-Christos Evangeliou, Honorary President, The International Association for Greek Philosophy, Professor of Philosophy, Towson University