Conceived and edited by Phaidon editors.Chika Okeke-Agulu is Professor of African and African Diaspora Art at Princeton University. He is the author of several books including Postcolonial Modernism: Art and Decolonization in Twentieth-Century Nigeria (2015), and is a co-editor of Nka: Journal of Contemporary African Art. Joseph L. Underwood is a scholar and curator whose research addresses the transnational networks of modern and contemporary African art, with an emphasis on artists from Senegal.