Tobias G. Natter, former director of the Leopold Museum, Vienna, is the proprietor of Natter Fine Arts, Vienna. He frequently curates exhibitions and is the author of numerous publications, including the catalogues raisonnés Egon Schiele: The Complete Paintings 1909–1918 (2017) and Gustav Klimt: Complete Paintings (2012).
Max Hollein is the director and CEO of the Fine Arts Museums of San Francisco. Among his many publications are Art for All: The Colour Woodcut in Vienna around 1900 (2016), which he coedited with Natter and Klaus Albrecht Schröder, and The Naked Truth: Klimt, Schiele, Kokoschka and Other Scandals (2005), which he coedited with Natter.
Martin Chapman is the curator in charge of decorative arts and sculpture at the Fine Arts Museums of San Francisco. He has authored, most recently, The Sculpture of Auguste Rodin at the Legion of Honor (2017).
Matthias Haldemann is the director of the Kunsthaus Zug, Switzerland. He has written and edited several books about modern and contemporary art, including the catalogues raisonnés Ilya Kabakov: Installations 2000–2017 (2017) and Ilya Kabakov: Artist Books 1958–2009 (2009) and Kandinsky (2016).
Michael Kausch is a professor of art history at the Institut für Kunstwissenschaft, University of Koblenz, Germany. He has published extensively within the fields of nineteenth- and twentieth-century art history, art philosophy, and aesthetics.
Renée Price is the founding director of Neue Galerie New York. She has curated and contributed to several major exhibitions and publications for the museum, including Gustav Klimt: The Ronald S. Lauder and Serge Sabarsky Collections (2007) and New Worlds: German and Austrian Art 1890–1940 (2001).