DAWN ADES is Professor Emerita of the History and Theory of Art at the University of Essex, and Professor of Art History at the Royal Academy. She is a former Trustee of Tate and Fellow of the British Academy DANIEL F. HERRMANN is Curator of Modern and Contemporary Projects, The National Gallery. EMILY BUTLER is a curator, writer and translator, currently Mahera and Mohammad Abu Ghazaleh Curator at the Whitechapel Gallery.