In the media, Lobbyists are often portrayed as an evil force only concerned with filling their pockets at the expense of the public. In the academic literature, interest groups are seen as an important factor in decision-making processes in modern democracies. In this seminar we will analyze the role of interest groups in shaping policy outcomes. This includes the analysis of lobbying activities and strategies, as well as the assessment of interest group efficacy. We seek to provide a balanced view of the risks and benefits of interest group involvement.