Acquainted with Henri Michaux, Hans Bellmer and various members of the Parisian circle of Surrealists, Unica Zürn (1916-1970) broke ground with her own anagrammatic poetry, expressionistic prose and chimerical drawings and paintings. Acclaimed novelists and poets read from her writings in conjunction with the exhibition, “Unica Zürn: Dark Spring,” on view at The Drawing Center from April 17 to July 23.