Isabel Wünsche is Professor of Art and Art History at Jacobs University, Bremen, Germany. She specializes in European modernism, the avant-garde movements, and abstract art. Her publications include Galka E. Scheyer and The Blue Four: Correspondence, 1924–1945 (2006), Biocentrism and Modernism (with Oliver A.I. Botar, 2011), Meanings of Abstract Art: Between Nature and Theory (with Paul Crowther, 2012) and The Organic School of the Russian Avant-Garde (2015).Wiebke Gronemeyer is a curator and researcher based in Hamburg, Germany. In 2015, she received her PhD from Goldsmiths, University of London, with a thesis titled “The Curatorial Complex: Social Dimensions of Knowledge Production.” She is also a Research Associate at Jacobs University, Bremen. Information about her research and curatorial practice can be found at www.wiebkegronemeyer.de.