Max Slevogt, the famous German impressionist, is celebrated by his contemporaries as the “king of illustration.” This special exhibition is the first to focus intensively on his unique collaboration with Bruno Cassirer, Berlin's most influential publisher during the Weimar Republic, which established his reputation. The majority of Slevogt's extensive and highly innovative illustrations were published by this publishing house. The presentation is based on largely unpublished correspondence, which provides numerous new insights into their success story, contemporary history, their network, and the personal relationship between these two outstanding personalities.