This book is published to accompany the first major UK retrospective of the visual art of the pioneering American composer and artist John Cage (19121992). The use of chance operations, in particular the Chinese Book of Changes, or I Ching, was central to Cage's compositional method and his approach to his drawings, watercolours and prints, many of which are reproduced here for the first time. Cage's practice is explored in new interviews with key collaborators: printmaker Kathan Brown; Laura Kuhn, Director of the John Cage Trust; artist Ray Kass; and Julie Lazar, curator of Cage's 1992 'composition for a museum', Rolywholyover: A Circus. Extracts from a 1966 interview between Cage and the critic Irving Sandler are also included. At the heart of the book is a 'Companion to Cage': a selection of quotations by Cage and notes on key themes and influences from 'Alphabet' to 'Zen', making it essential reading on this important figure of the twentieth-century avant-garde. Published to accompany the UK touring exhibition in 2010 2011 at Baltic Centre for Contemporary Art, Gateshead; Kettle's Yard, Cambridge; Huddersfield Art Gallery; Hunterian Art Gallery, Glasgow; De La Warr Pavilion, Bexhill-on-Sea.