Book excerpt: The Visible and the Invisible contains the unfinished manuscript and working notes of the book Merleau-Ponty was writing when he died. The text is devoted to a critical examination of Kantian, Husserlian, Bergsonian, and Sartrean method, followed by the extraordinary "The Intertwining--The Chiasm," that reveals the central pattern of Merleau-Ponty's own thought. The working notes for the book provide the reader with a truly exciting insight into the mind of the philosopher at work as he refines and develops new pivotal concepts.