Nina Simone's GumTHE TIMES BESTSELLER FEATURING AN INTRODUCTION BY NICK CAVE 'Warren has turned this memento, snatched from his idol's piano in a moment of rapture, into a genuine religious artefact.' NICK CAVE 'In praise of meaning rich relics and magical things. Totally heartwarming project.' MAX PORTER 'A unique study of a fan's devotion, of transcendence and of the artistic vocation it's got depth and great warmth. It's a beautiful piece of work.' KEVIN BARRY I