'Seeing Voices is both a history of the deaf and an account of the development of an extraordinary and expressive language' Evening Standard Imaginative and insightful, Seeing Voices offers a way into a world that is, for many people, alien and unfamiliar -- for to be profoundly deaf is not just to live in a world of silence, but also to live in a world where the visual is paramount. In this remarkable book, Oliver Sacks explores the consequences of this, including the different ways in which the deaf and the hearing learn to categorize their respective worlds -- and how they convey and communicate those experiences to others. 'Seeing Voices is a manifesto, characteristically humane and impassioned; once more, Sacks proves he is the doyen of science with a human face' Sunday Times 'Empathetic, intelligent and compassionate' Guardian 'Scholarly and carefully documented, Seeing Voices makes the gigantic leap so essential to understanding total deafness' Sunday Telegraph 'A passionate meditation on the richness of sign language' Independent