Born in Finland in 1932, Dr. Jaakko Hintikka―originator of game-theory semantics―is a leading figure on the international philosophical scene. He is currently a professor of philosophy at Boston University. This book includes an intellectual biography of Hintikka, 27 previously unpublished critical and descriptive essays by famous scholars, a reply to each by Hintikka himself, and a complete bibliography of Hintikka's published works.