This work depicts Otto Bauer as the main politician of the SDAP and attempts a critical-analytical interpretation of his socio-political theories, which are shown against the background of the debates within the First and Second Internationals, political events within the SDAP, the international workers' movement, and the socio-historical processes in Austria and Europe at the time.

Ewa Czerwińska-Schupp is a senior lecturer of philosophy at Poznan University. Her scientific research focuses on the social and political philosophy of the 20th century and the history of Marxism. She has published various treatises on Austromarxism, including Otto Bauer. Studien zur sozialpolitischen Philosophie (Peter Lang, 2015).