Matisse and Picasso have long been seen as the twin giants of modern art. In spite of their rivalry, each came to acknowledge the other as his only true equal. In later life Matisse commented that 'Picasso sees everything', and Picasso stated that 'All things considered, there is only Matisse.' This book explores their artistic relationship, revealing it to be much closer and more complex than has previously been understood.An introduction by John Golding explains how the work of each artist both inspired and provoked the other. Thirty-four groups of works exploring the artistic encounters of Matisse and Picasso throughout the course of their careers are analysed in illuminating texts by the six curators. There is also an extensive chronology, the fruit of new archival research.The exhibition is a collaboration between Tate Modern in London, the Reunion des Musees Nationaux/Musee Picasso with the Musee National d'Art Moderne in Paris, and The Museum of Modern Art in New York.