Doeblin's texts, which range widely across contemporary discourses, are paradigms of the encounter between literary and scientific modernity. With their use of 'Tatsachenphantasie', they explode conventional language, seeking a new connection with the world of objects and things. This volume reassesses and reevaluates the uniquely interdisciplinary quality of Doeblin's interdiscursive, factually-inspired poetics by offering challenging new perspectives on key works. The volume analyses not only some of Doeblin's best-known novels and stories, but also neglected works including his early medical essays, political journalism and autobiographical texts. Other topics addressed are Doeblin's engagement with German history; his relation to medical discourse; his topography of Berlin; his aestheticisation of his own biography and his relation to other major writers such as Heine, Benn, Brecht and Sebald. With contributions in English and in German by scholars from Germany and the United Kingdom, the volume presents insights into Doeblin that are of value to advanced researchers and to students alike.