Based on his extensive standard work 'The German Bundestag: Functions, Will Formation, Reform Approaches', the author presents a revised and updated version designed for study purposes. The constitution of the 14th German Bundestag and the formation of the government and parliamentary groups in the autumn of 1998 have been taken into account. The book provides a comprehensive overview of the position and functions of the Bundestag within the political system of Germany. Drawing on the author's research, the work aims to foster understanding of the organization, working methods, and the diverse and complex structures of decision-making. It presents both the public and formal legislative and oversight activities as well as the internal (and informal) processes of decision-making within and between parliamentary, factional, and coalition bodies. Legal provisions, internal faction regulations, and parliamentary practices are systematically related and discussed in their context of emergence and impact. Investigations into the effectiveness of previous parliamentary reforms and further reform considerations complete the work.