(b Grüneberg, June 28, 1865; d Dresden, Feb 1, 1910).
German writer and publisher. From 1892 to 1894 he edited the Freie Bühne (later renamed Neue deutsche Rundschau), the Berlin-based magazine that acted as the chief mouthpiece of literary naturalism. He took up the cause of modernist painting in his very first publication, A. Böcklin (1891), a text introducing 15 heliographs of the artist’s work, and this was followed by publications on Fritz von Uhde (1893; 1908) and on Hans Thoma (1904). In 1894, with Julius Meier-Graefe, Bierbaum founded Pan, which was to become the leading avant-garde journal of the period in Germany, notable for its typography and for the inventive integration of text and illustration. There were also reproductions of paintings, drawings and sculpture, and the list of contributors included Franz von Stuck, Thoma, von Uhde, James Abbott McNeill Whistler, Henri de Toulouse-Lautrec, Max Klinger, Arnold Böcklin, Paul Signac, Georges Seurat, Félix Vallotton, ...